diff --git a/changelog/add-body-class-for-course-theme-variation b/changelog/add-body-class-for-course-theme-variation
new file mode 100644
index 0000000000..df958faafd
--- /dev/null
+++ b/changelog/add-body-class-for-course-theme-variation
@@ -0,0 +1,4 @@
+Significance: minor
+Type: added
+
+Body class to indicate Course theme variation
diff --git a/includes/class-sensei.php b/includes/class-sensei.php
index bf119472bd..cf54f0de4a 100644
--- a/includes/class-sensei.php
+++ b/includes/class-sensei.php
@@ -741,6 +741,8 @@ public function load_hooks() {
 
 		add_action( 'body_class', array( $this, 'body_class' ) );
 
+		add_filter( 'body_class', array( $this, 'maybe_add_course_theme_variation_class' ) );
+
 		// Check for and activate JetPack LaTeX support
 		add_action( 'plugins_loaded', array( $this, 'jetpack_latex_support' ), 200 ); // Runs after Jetpack has loaded it's modules
 
@@ -1411,6 +1413,48 @@ public function body_class( $classes ) {
 		return $classes;
 	}
 
+	/**
+	 * For course theme, add a body class with the variation.
+	 *
+	 * @param array $classes Body classes.
+	 *
+	 * @internal
+	 *
+	 * @return array Body classes.
+	 */
+	public function maybe_add_course_theme_variation_class( $classes ) {
+		$theme = wp_get_theme();
+
+		$is_course_theme = 'course' === strtolower( $theme->get_template() ) ||
+			'course' === strtolower( $theme['Name'] ?? '' );
+
+		if ( ! $is_course_theme ) {
+			return $classes;
+		}
+
+		$css_string    = wp_get_global_stylesheet( [ 'variables' ] );
+		$property_name = '--wp--custom--course-theme-variation';
+
+		// 1. "/": Delimiters that mark the start and end of the regex pattern.
+		// 2. "$property_name": This part of the pattern matches the specific property name, in our case, '--wp--custom--course-theme-variation', defined in Course theme's JSON files.
+		// 3. "\s*": Matches zero or more whitespace characters.
+		// 4. ":": Matches the colon you write to separate the CSS property name and property value.
+		// 5. "\s*": Matches zero or more whitespace characters after the colon.
+		// 6. "([^;]+)": This is a capturing group that matches one or more characters that are not a semicolon. It captures the value of the property.
+		// 7. "/": The closing delimiter of the regex pattern.
+		// Overall, this regex is designed to extract the value associated with a specific CSS property (defined in $property_name).
+		$pattern = "/$property_name\s*:\s*([^;]+)/";
+
+		if ( preg_match( $pattern, $css_string, $matches ) ) {
+			// $matches[0] contains the full match.
+			// $matches[1] contains the CSS value for the specified property.
+			$css_value = trim( $matches[1] );
+			$classes[] = 'course-theme-variation-' . $css_value;
+		}
+
+		return $classes;
+	}
+
 	/**
 	 * Checks that the Jetpack Beautiful Maths module has been activated
 	 * to support LaTeX within question titles and answers