diff --git a/features/lwipstack/LWIPInterface.cpp b/features/lwipstack/LWIPInterface.cpp
index aef8e246e2..e6e59a450a 100644
--- a/features/lwipstack/LWIPInterface.cpp
+++ b/features/lwipstack/LWIPInterface.cpp
@@ -349,33 +349,6 @@ char *LWIP::Interface::get_ip_address(char *buf, nsapi_size_t buflen)
 #endif
 }
 
-char *LWIP::Interface::get_ip_address_if(char *buf, nsapi_size_t buflen, const char *interface_name)
-{
-    const ip_addr_t *addr;
-
-    if (interface_name == NULL) {
-        addr = LWIP::get_ip_addr(true, &netif);
-    } else {
-        addr = LWIP::get_ip_addr(true, netif_find(interface_name));
-    }
-    if (!addr) {
-        return NULL;
-    }
-#if LWIP_IPV6
-    if (IP_IS_V6(addr)) {
-        return ip6addr_ntoa_r(ip_2_ip6(addr), buf, buflen);
-    }
-#endif
-#if LWIP_IPV4
-    if (IP_IS_V4(addr)) {
-        return ip4addr_ntoa_r(ip_2_ip4(addr), buf, buflen);
-    }
-#endif
-#if LWIP_IPV6 && LWIP_IPV4
-    return NULL;
-#endif
-}
-
 nsapi_error_t LWIP::Interface::get_netmask(SocketAddress *address)
 {
     if (!address) {
diff --git a/features/lwipstack/LWIPStack.h b/features/lwipstack/LWIPStack.h
index 54f2fed081..3d25b304fb 100644
--- a/features/lwipstack/LWIPStack.h
+++ b/features/lwipstack/LWIPStack.h
@@ -106,9 +106,6 @@ public:
          */
         virtual nsapi_error_t get_ipv6_link_local_address(SocketAddress *address);
 
-        MBED_DEPRECATED_SINCE("mbed-os-5.15", "String-based APIs are deprecated")
-        virtual char *get_ip_address_if(char *buf, nsapi_size_t buflen, const char *interface_name);
-
         /** Copies netmask of the network interface to user supplied buffer
          *
          * @param    buf        buffer to which netmask will be copied as "W:X:Y:Z"