diff --git a/include/debug/stack.h b/include/debug/stack.h
index 53405e63458d36..9ac4fc10599c0a 100644
--- a/include/debug/stack.h
+++ b/include/debug/stack.h
@@ -15,81 +15,6 @@
 #include <logging/log.h>
 #include <stdbool.h>
 
-static inline size_t stack_unused_space_get(const char *stack, size_t size)
-{
-	size_t unused = 0;
-
-	if (IS_ENABLED(CONFIG_INIT_STACKS)) {
-		const unsigned char *checked_stack =
-			(const unsigned char *)stack;
-
-		if (IS_ENABLED(CONFIG_STACK_SENTINEL)) {
-			/* First 4 bytes of the stack buffer reserved for the
-			 * sentinel value, it won't be 0xAAAAAAAA for thread
-			 * stacks.
-			 */
-			checked_stack += 4;
-		}
-
-		/* TODO Currently all supported platforms have stack growth down
-		 * and there is no Kconfig option to configure it so this always
-		 * build "else" branch.
-		 * When support for platform with stack direction up
-		 * (or configurable direction) is added this check should be
-		 * confirmed that correct Kconfig option is used.
-		 */
-		if (IS_ENABLED(CONFIG_STACK_GROWS_UP)) {
-			for (size_t i = size; i > 0; i--) {
-				if (checked_stack[i - 1] == 0xaaU) {
-					unused++;
-				} else {
-					break;
-				}
-			}
-		} else {
-			for (size_t i = 0; i < size; i++) {
-				if (checked_stack[i] == 0xaaU) {
-					unused++;
-				} else {
-					break;
-				}
-			}
-		}
-	}
-
-	return unused;
-}
-
-__deprecated
-static inline void stack_analyze(const char *name, const char *stack,
-				 unsigned int size)
-{
-	if (IS_ENABLED(CONFIG_INIT_STACKS)) {
-		LOG_MODULE_DECLARE(os, CONFIG_KERNEL_LOG_LEVEL);
-
-		unsigned int unused = stack_unused_space_get(stack, size);
-		unsigned int pcnt = ((size - unused) * 100U) / size;
-
-		LOG_INF("%s :\tunused %u\tusage %u / %u (%u %%)",
-			name, unused, size - unused, size, pcnt);
-	}
-}
-
-/**
- * @brief Analyze stacks.
- *
- * Use this macro to get information about stack usage.
- *
- * @param name Name of the stack
- * @param sym The symbol of the stack
- */
-#define STACK_ANALYZE(name, sym) DEPRECATED_MACRO		\
-	do {							\
-		stack_analyze(name,				\
-			      Z_THREAD_STACK_BUFFER(sym),	\
-			      K_THREAD_STACK_SIZEOF(sym));	\
-	} while (false)
-
 static inline void log_stack_usage(const struct k_thread *thread)
 {
 #if defined(CONFIG_INIT_STACKS) && defined(CONFIG_THREAD_STACK_INFO)