diff --git a/base/count-falsy/README.md b/base/count-falsy/README.md
new file mode 100644
index 00000000..a831e9fc
--- /dev/null
+++ b/base/count-falsy/README.md
@@ -0,0 +1,113 @@
+
+
+# countFalsy
+
+> Count the number of falsy elements in an array.
+
+
+
+
+
+
+
+
+
+
+
+## Usage
+
+```javascript
+var countFalsy = require( '@stdlib/array/base/count-falsy' );
+```
+
+#### countFalsy( x )
+
+Counts the number of falsy elements in an array.
+
+```javascript
+var x = [ 0, 1, 0, 1, 2 ];
+
+var out = countFalsy( x );
+// returns 2
+```
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+## Examples
+
+
+
+```javascript
+var bernoulli = require( '@stdlib/random/array/bernoulli' );
+var countFalsy = require( '@stdlib/array/base/count-falsy' );
+
+var x = bernoulli( 100, 0.5, {
+ 'dtype': 'generic'
+});
+console.log( x );
+
+var n = countFalsy( x );
+console.log( n );
+```
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/base/count-falsy/benchmark/benchmark.length.js b/base/count-falsy/benchmark/benchmark.length.js
new file mode 100644
index 00000000..ef2ef5ce
--- /dev/null
+++ b/base/count-falsy/benchmark/benchmark.length.js
@@ -0,0 +1,98 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var isNonNegativeInteger = require( '@stdlib/assert/is-nonnegative-integer' ).isPrimitive;
+var bernoulli = require( '@stdlib/random/array/bernoulli' );
+var pkg = require( './../package.json' ).name;
+var countFalsy = require( './../lib' );
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+ var x = bernoulli( len, 0.5, {
+ 'dtype': 'generic'
+ });
+ return benchmark;
+
+ /**
+ * Benchmark function.
+ *
+ * @private
+ * @param {Benchmark} b - benchmark instance
+ */
+ function benchmark( b ) {
+ var out;
+ var i;
+
+ b.tic();
+ for ( i = 0; i < b.iterations; i++ ) {
+ out = countFalsy( x );
+ if ( typeof out !== 'number' ) {
+ b.fail( 'should return a number' );
+ }
+ }
+ b.toc();
+ if ( !isNonNegativeInteger( out ) ) {
+ b.fail( 'should return a nonnegative integer' );
+ }
+ b.pass( 'benchmark finished' );
+ b.end();
+ }
+}
+
+
+// MAIN //
+
+/**
+* Main execution sequence.
+*
+* @private
+*/
+function main() {
+ var len;
+ var min;
+ var max;
+ var f;
+ var i;
+
+ min = 1; // 10^min
+ max = 6; // 10^max
+
+ for ( i = min; i <= max; i++ ) {
+ len = pow( 10, i );
+
+ f = createBenchmark( len );
+ bench( pkg+':dtype=generic,len='+len, f );
+ }
+}
+
+main();
diff --git a/base/count-falsy/docs/repl.txt b/base/count-falsy/docs/repl.txt
new file mode 100644
index 00000000..38e161ff
--- /dev/null
+++ b/base/count-falsy/docs/repl.txt
@@ -0,0 +1,22 @@
+
+{{alias}}( x )
+ Counts the number of falsy values in an array.
+
+ Parameters
+ ----------
+ x: ArrayLikeObject
+ Input array.
+
+ Returns
+ -------
+ out: integer
+ Number of falsy values.
+
+ Examples
+ --------
+ > var out = {{alias}}( [ 0, 1, 1 ] )
+ 1
+
+ See Also
+ --------
+
diff --git a/base/count-falsy/docs/types/index.d.ts b/base/count-falsy/docs/types/index.d.ts
new file mode 100644
index 00000000..43b7c218
--- /dev/null
+++ b/base/count-falsy/docs/types/index.d.ts
@@ -0,0 +1,42 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2024 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+// TypeScript Version: 4.1
+
+///
+
+import { Collection } from '@stdlib/types/array';
+
+/**
+* Counts the number of falsy values in an array.
+*
+* @param x - input array
+* @returns number of falsy values
+*
+* @example
+* var x = [ 0, 1, 0, 1, 1 ];
+*
+* var out = countFalsy( x );
+* // returns 2
+*/
+declare function countFalsy( x: Collection ): number;
+
+
+// EXPORTS //
+
+export = countFalsy;
diff --git a/base/count-falsy/docs/types/test.ts b/base/count-falsy/docs/types/test.ts
new file mode 100644
index 00000000..99f4f7ed
--- /dev/null
+++ b/base/count-falsy/docs/types/test.ts
@@ -0,0 +1,42 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2024 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+import countFalsy = require( './index' );
+
+
+// TESTS //
+
+// The function returns a number...
+{
+ countFalsy( [ 1, 2, 3 ] ); // $ExpectType number
+}
+
+// The compiler throws an error if the function is provided an argument which is not a collection...
+{
+ countFalsy( 5 ); // $ExpectError
+ countFalsy( true ); // $ExpectError
+ countFalsy( false ); // $ExpectError
+ countFalsy( null ); // $ExpectError
+ countFalsy( {} ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided an unsupported number of arguments...
+{
+ countFalsy(); // $ExpectError
+ countFalsy( [ 1, 2, 3 ], 2 ); // $ExpectError
+}
diff --git a/base/count-falsy/examples/index.js b/base/count-falsy/examples/index.js
new file mode 100644
index 00000000..d99a7fbb
--- /dev/null
+++ b/base/count-falsy/examples/index.js
@@ -0,0 +1,30 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+var bernoulli = require( '@stdlib/random/array/bernoulli' );
+var countFalsy = require( './../lib' );
+
+var x = bernoulli( 100, 0.5, {
+ 'dtype': 'generic'
+});
+console.log( x );
+
+var n = countFalsy( x );
+console.log( n );
diff --git a/base/count-falsy/lib/index.js b/base/count-falsy/lib/index.js
new file mode 100644
index 00000000..f76288aa
--- /dev/null
+++ b/base/count-falsy/lib/index.js
@@ -0,0 +1,42 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+/**
+* Count the number of falsy values in an array.
+*
+* @module @stdlib/array/base/count-falsy
+*
+* @example
+* var countFalsy = require( '@stdlib/array/base/count-falsy' );
+*
+* var x = [ 0, 1, 0, 1, 1 ];
+*
+* var n = countFalsy( x );
+* // returns 2
+*/
+
+// MODULES //
+
+var main = require( './main.js' );
+
+
+// EXPORTS //
+
+module.exports = main;
diff --git a/base/count-falsy/lib/main.js b/base/count-falsy/lib/main.js
new file mode 100644
index 00000000..d8f7e7e9
--- /dev/null
+++ b/base/count-falsy/lib/main.js
@@ -0,0 +1,147 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var isComplexTypedArray = require( './../../../base/assert/is-complex-typed-array' );
+var isAccessorArray = require( './../../../base/assert/is-accessor-array' );
+var resolveGetter = require( './../../../base/resolve-getter' );
+var reinterpret = require( '@stdlib/strided/base/reinterpret-complex' );
+
+
+// FUNCTIONS //
+
+/**
+* Counts the number of falsy values in an indexed array.
+*
+* @private
+* @param {Collection} x - input array
+* @returns {NonNegativeInteger} number of falsy values
+*
+* @example
+* var x = [ 0, 1, 0, 1, 1 ];
+*
+* var n = indexed( x );
+* // returns 2
+*/
+function indexed( x ) {
+ var n;
+ var i;
+
+ n = 0;
+ for ( i = 0; i < x.length; i++ ) {
+ if ( !x[ i ] ) {
+ n += 1;
+ }
+ }
+ return n;
+}
+
+/**
+* Counts the number of falsy values in an accessor array.
+*
+* @private
+* @param {Collection} x - input array
+* @returns {NonNegativeInteger} number of falsy values
+*
+* @example
+* var toAccessorArray = require( '@stdlib/array/base/to-accessor-array' );
+*
+* var x = toAccessorArray( [ 0, 1, 0, 1, 1 ] );
+*
+* var n = accessors( x );
+* // returns 2
+*/
+function accessors( x ) {
+ var get;
+ var n;
+ var i;
+
+ get = resolveGetter( x );
+
+ n = 0;
+ for ( i = 0; i < x.length; i++ ) {
+ if ( !get( x, i ) ) {
+ n += 1;
+ }
+ }
+ return n;
+}
+
+/**
+* Counts the number of falsy values in a complex array.
+*
+* @private
+* @param {Collection} x - input array
+* @returns {NonNegativeInteger} number of falsy values
+*
+* @example
+* var Complex128Array = require( '@stdlib/array/complex128' );
+*
+* var x = new Complex128Array( [ 1.0, 2.0, 0.0, 0.0, 3.0, 4.0, 0.0, 0.0, 5.0, 6.0 ] );
+*
+* var n = complex( x );
+* // returns 2
+*/
+function complex( x ) {
+ var view;
+ var n;
+ var i;
+
+ view = reinterpret( x, 0 );
+
+ n = 0;
+ for ( i = 0; i < view.length; i += 2 ) {
+ if ( view[ i ] === 0.0 && view[ i+1 ] === 0.0 ) {
+ n += 1;
+ }
+ }
+ return n;
+}
+
+
+// MAIN //
+
+/**
+* Counts the number of falsy values in an array.
+*
+* @param {Collection} x - input array
+* @returns {NonNegativeInteger} number of falsy values
+*
+* @example
+* var x = [ 0, 1, 0, 1, 1 ];
+*
+* var n = countFalsy( x );
+* // returns 2
+*/
+function countFalsy( x ) {
+ if ( isAccessorArray( x ) ) {
+ if ( isComplexTypedArray( x ) ) {
+ return complex( x );
+ }
+ return accessors( x );
+ }
+ return indexed( x );
+}
+
+
+// EXPORTS //
+
+module.exports = countFalsy;
diff --git a/base/count-falsy/package.json b/base/count-falsy/package.json
new file mode 100644
index 00000000..92641bdf
--- /dev/null
+++ b/base/count-falsy/package.json
@@ -0,0 +1,65 @@
+{
+ "name": "@stdlib/array/base/count-falsy",
+ "version": "0.0.0",
+ "description": "Count the number of falsy elements in an array.",
+ "license": "Apache-2.0",
+ "author": {
+ "name": "The Stdlib Authors",
+ "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+ },
+ "contributors": [
+ {
+ "name": "The Stdlib Authors",
+ "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+ }
+ ],
+ "main": "./lib",
+ "directories": {
+ "benchmark": "./benchmark",
+ "doc": "./docs",
+ "example": "./examples",
+ "lib": "./lib",
+ "test": "./test"
+ },
+ "types": "./docs/types",
+ "scripts": {},
+ "homepage": "https://github.com/stdlib-js/stdlib",
+ "repository": {
+ "type": "git",
+ "url": "git://github.com/stdlib-js/stdlib.git"
+ },
+ "bugs": {
+ "url": "https://github.com/stdlib-js/stdlib/issues"
+ },
+ "dependencies": {},
+ "devDependencies": {},
+ "engines": {
+ "node": ">=0.10.0",
+ "npm": ">2.7.0"
+ },
+ "os": [
+ "aix",
+ "darwin",
+ "freebsd",
+ "linux",
+ "macos",
+ "openbsd",
+ "sunos",
+ "win32",
+ "windows"
+ ],
+ "keywords": [
+ "stdlib",
+ "stdtypes",
+ "types",
+ "data",
+ "structure",
+ "array",
+ "count",
+ "sum",
+ "summation",
+ "countif",
+ "total",
+ "falsy"
+ ]
+}
diff --git a/base/count-falsy/test/test.js b/base/count-falsy/test/test.js
new file mode 100644
index 00000000..02aed98f
--- /dev/null
+++ b/base/count-falsy/test/test.js
@@ -0,0 +1,114 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var Complex128Array = require( './../../../complex128' );
+var Int32Array = require( './../../../int32' );
+var toAccessorArray = require( './../../../base/to-accessor-array' );
+var countFalsy = require( './../lib' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof countFalsy, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'the function counts the number of falsy values (generic)', function test( t ) {
+ var expected;
+ var actual;
+ var x;
+
+ x = [ 0, 1, 0, 1, 2 ];
+ expected = 2;
+ actual = countFalsy( x );
+
+ t.strictEqual( actual, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function counts the number of falsy values (accessors)', function test( t ) {
+ var expected;
+ var actual;
+ var x;
+
+ x = toAccessorArray( [ 0, 1, 0, 1, 2 ] );
+ expected = 2;
+ actual = countFalsy( x );
+
+ t.strictEqual( actual, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function counts the number of falsy values (real typed array)', function test( t ) {
+ var expected;
+ var actual;
+ var x;
+
+ x = new Int32Array( [ 0, 1, 0, 1, 2 ] );
+ expected = 2;
+ actual = countFalsy( x );
+
+ t.strictEqual( actual, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function counts the number of falsy values (complex typed array)', function test( t ) {
+ var expected;
+ var actual;
+ var x;
+
+ x = new Complex128Array( [ 0.0, 0.0, 1.0, 0.0, 3.0, 4.0, 0.0, 5.0 ] );
+ expected = 1;
+ actual = countFalsy( x );
+
+ t.strictEqual( actual, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns zero if provided an array of length `0`', function test( t ) {
+ var expected;
+ var actual;
+ var x;
+
+ expected = 0;
+
+ x = [];
+ actual = countFalsy( x );
+ t.strictEqual( actual, expected, 'returns expected value' );
+
+ x = toAccessorArray( [] );
+ actual = countFalsy( x );
+ t.strictEqual( actual, expected, 'returns expected value' );
+
+ x = new Int32Array( [] );
+ actual = countFalsy( x );
+ t.strictEqual( actual, expected, 'returns expected value' );
+
+ x = new Complex128Array( [] );
+ actual = countFalsy( x );
+ t.strictEqual( actual, expected, 'returns expected value' );
+
+ t.end();
+});
diff --git a/base/lib/index.js b/base/lib/index.js
index 7c48aa8f..eedfdca9 100644
--- a/base/lib/index.js
+++ b/base/lib/index.js
@@ -423,6 +423,15 @@ setReadOnly( ns, 'copy', require( './../../base/copy' ) );
*/
setReadOnly( ns, 'copyIndexed', require( './../../base/copy-indexed' ) );
+/**
+* @name countFalsy
+* @memberof ns
+* @readonly
+* @type {Function}
+* @see {@link module:@stdlib/array/base/count-falsy}
+*/
+setReadOnly( ns, 'countFalsy', require( './../../base/count-falsy' ) );
+
/**
* @name countTruthy
* @memberof ns