diff --git a/pkg/lwip/contrib/_netif.c b/pkg/lwip/contrib/_netif.c
index a931e68f1aad..b648abf400ff 100644
--- a/pkg/lwip/contrib/_netif.c
+++ b/pkg/lwip/contrib/_netif.c
@@ -21,7 +21,7 @@
 #include "lwip/netifapi.h"
 #include "net/netif.h"
 
-int netif_get_name(netif_t *iface, char *name)
+int netif_get_name(const netif_t *iface, char *name)
 {
     lwip_netif_t *lwip_netif = (lwip_netif_t*) iface;
     struct netif *netif = &lwip_netif->lwip_netif;
@@ -34,7 +34,7 @@ int netif_get_name(netif_t *iface, char *name)
     return res;
 }
 
-int netif_get_opt(netif_t *iface, netopt_t opt, uint16_t context,
+int netif_get_opt(const netif_t *iface, netopt_t opt, uint16_t context,
                   void *value, size_t max_len)
 {
     (void)context;
@@ -83,7 +83,7 @@ int netif_get_opt(netif_t *iface, netopt_t opt, uint16_t context,
     return res;
 }
 
-int netif_set_opt(netif_t *iface, netopt_t opt, uint16_t context,
+int netif_set_opt(const netif_t *iface, netopt_t opt, uint16_t context,
                   void *value, size_t value_len)
 {
     (void)context;
diff --git a/sys/include/net/netif.h b/sys/include/net/netif.h
index 0540c2db992f..a208b372d0d4 100644
--- a/sys/include/net/netif.h
+++ b/sys/include/net/netif.h
@@ -104,7 +104,7 @@ netif_t *netif_iter(const netif_t *last);
  * @return  length of @p name on success
  */
 
-int netif_get_name(netif_t *netif, char *name);
+int netif_get_name(const netif_t *netif, char *name);
 
 /**
  * @brief   Gets the numeric identifier of an interface
@@ -170,7 +170,7 @@ netif_t *netif_get_by_id(int16_t id);
  * @return  Number of bytes written to @p value.
  * @return  `< 0` on error, 0 on success.
  */
-int netif_get_opt(netif_t *netif, netopt_t opt, uint16_t context,
+int netif_get_opt(const netif_t *netif, netopt_t opt, uint16_t context,
                   void *value, size_t max_len);
 
 /**
@@ -187,7 +187,7 @@ int netif_get_opt(netif_t *netif, netopt_t opt, uint16_t context,
  * @return Number of bytes used from @p value.
  * @return `< 0` on error, 0 on success.
  */
-int netif_set_opt(netif_t *netif, netopt_t opt, uint16_t context,
+int netif_set_opt(const netif_t *netif, netopt_t opt, uint16_t context,
                   void *value, size_t value_len);
 
 /**
diff --git a/sys/net/gnrc/netif/_netif.c b/sys/net/gnrc/netif/_netif.c
index 2a919ccf987b..c12e446aedf1 100644
--- a/sys/net/gnrc/netif/_netif.c
+++ b/sys/net/gnrc/netif/_netif.c
@@ -24,7 +24,7 @@
 
 #include "net/netif.h"
 
-int netif_get_name(netif_t *iface, char *name)
+int netif_get_name(const netif_t *iface, char *name)
 {
     gnrc_netif_t *netif = container_of(iface, gnrc_netif_t, netif);
 
@@ -45,14 +45,14 @@ netif_t *netif_get_by_id(int16_t id)
     return &gnrc_netif_get_by_pid((kernel_pid_t)id)->netif;
 }
 
-int netif_get_opt(netif_t *iface, netopt_t opt, uint16_t context,
+int netif_get_opt(const netif_t *iface, netopt_t opt, uint16_t context,
                   void *value, size_t max_len)
 {
     const gnrc_netif_t *netif = container_of(iface, gnrc_netif_t, netif);
     return gnrc_netapi_get(netif->pid, opt, context, value, max_len);
 }
 
-int netif_set_opt(netif_t *iface, netopt_t opt, uint16_t context,
+int netif_set_opt(const netif_t *iface, netopt_t opt, uint16_t context,
                   void *value, size_t value_len)
 {
     const gnrc_netif_t *netif = container_of(iface, gnrc_netif_t, netif);