diff --git a/ChangeLog.d/mbedtls_asn1_type_free.txt b/ChangeLog.d/mbedtls_asn1_type_free.txt
index 87ac5ec..81f3a20 100644
--- a/ChangeLog.d/mbedtls_asn1_type_free.txt
+++ b/ChangeLog.d/mbedtls_asn1_type_free.txt
@@ -1,2 +1,6 @@
 Features
    * Shared code to free x509 structs like mbedtls_x509_named_data
+New deprecations
+   * Deprecate mbedtls_asn1_free_named_data().
+     Use mbedtls_asn1_free_named_data_list()
+     or mbedtls_asn1_free_named_data_list_shallow()
diff --git a/include/mbedtls/asn1.h b/include/mbedtls/asn1.h
index 5d27495..8b66ee2 100644
--- a/include/mbedtls/asn1.h
+++ b/include/mbedtls/asn1.h
@@ -24,6 +24,7 @@
 #include "mbedtls/private_access.h"
 
 #include "mbedtls/build_info.h"
+#include "mbedtls/platform_util.h"
 
 #include <stddef.h>
 
@@ -606,22 +607,29 @@
 const mbedtls_asn1_named_data *mbedtls_asn1_find_named_data( const mbedtls_asn1_named_data *list,
                                        const char *oid, size_t len );
 
+#if !defined(MBEDTLS_DEPRECATED_REMOVED)
 /**
  * \brief       Free a mbedtls_asn1_named_data entry
  *
+ * \deprecated  This function is deprecated and will be removed in a
+ *              future version of the library.
+ *              Please use mbedtls_asn1_free_named_data_list()
+ *              or mbedtls_asn1_free_named_data_list_shallow().
+ *
  * \param entry The named data entry to free.
  *              This function calls mbedtls_free() on
  *              `entry->oid.p` and `entry->val.p`.
  */
-void mbedtls_asn1_free_named_data( mbedtls_asn1_named_data *entry );
+void MBEDTLS_DEPRECATED mbedtls_asn1_free_named_data( mbedtls_asn1_named_data *entry );
+#endif /* MBEDTLS_DEPRECATED_REMOVED */
 
 /**
  * \brief       Free all entries in a mbedtls_asn1_named_data list.
  *
  * \param head  Pointer to the head of the list of named data entries to free.
- *              This function calls mbedtls_asn1_free_named_data() and
- *              mbedtls_free() on each list element and
- *              sets \c *head to \c NULL.
+ *              This function calls mbedtls_free() on
+ *              `entry->oid.p` and `entry->val.p` and then on `entry`
+ *              for each list entry, and sets \c *head to \c NULL.
  */
 void mbedtls_asn1_free_named_data_list( mbedtls_asn1_named_data **head );
 
diff --git a/library/asn1parse.c b/library/asn1parse.c
index 4bc1771..28a3b14 100644
--- a/library/asn1parse.c
+++ b/library/asn1parse.c
@@ -431,6 +431,7 @@
     return( 0 );
 }
 
+#if !defined(MBEDTLS_DEPRECATED_REMOVED)
 void mbedtls_asn1_free_named_data( mbedtls_asn1_named_data *cur )
 {
     if( cur == NULL )
@@ -441,6 +442,7 @@
 
     mbedtls_platform_zeroize( cur, sizeof( mbedtls_asn1_named_data ) );
 }
+#endif /* MBEDTLS_DEPRECATED_REMOVED */
 
 void mbedtls_asn1_free_named_data_list( mbedtls_asn1_named_data **head )
 {
diff --git a/tests/suites/test_suite_asn1parse.data b/tests/suites/test_suite_asn1parse.data
index 36ab1e4..c129e3c 100644
--- a/tests/suites/test_suite_asn1parse.data
+++ b/tests/suites/test_suite_asn1parse.data
@@ -608,18 +608,23 @@
 find_named_data:"414141":"414141":"434343":"444444":"414141":0:0
 
 Free named data: null pointer
+depends_on:MBEDTLS_TEST_DEPRECATED
 free_named_data_null:
 
 Free named data: all null
+depends_on:MBEDTLS_TEST_DEPRECATED
 free_named_data:0:0:0
 
 Free named data: with oid
+depends_on:MBEDTLS_TEST_DEPRECATED
 free_named_data:1:0:0
 
 Free named data: with val
+depends_on:MBEDTLS_TEST_DEPRECATED
 free_named_data:0:1:0
 
 Free named data: with next
+depends_on:MBEDTLS_TEST_DEPRECATED
 free_named_data:0:0:1
 
 Free named data list (empty)
diff --git a/tests/suites/test_suite_asn1parse.function b/tests/suites/test_suite_asn1parse.function
index 002d8c4..dac8e31 100644
--- a/tests/suites/test_suite_asn1parse.function
+++ b/tests/suites/test_suite_asn1parse.function
@@ -735,7 +735,7 @@
 }
 /* END_CASE */
 
-/* BEGIN_CASE */
+/* BEGIN_CASE depends_on:!MBEDTLS_DEPRECATED_REMOVED */
 void free_named_data_null( )
 {
     mbedtls_asn1_free_named_data( NULL );
@@ -743,7 +743,7 @@
 }
 /* END_CASE */
 
-/* BEGIN_CASE */
+/* BEGIN_CASE depends_on:!MBEDTLS_DEPRECATED_REMOVED */
 void free_named_data( int with_oid, int with_val, int with_next )
 {
     mbedtls_asn1_named_data next =