diff --git a/python/port/genhdr/qstrdefs.in.h b/python/port/genhdr/qstrdefs.in.h
index 42a97091b..8db9261c0 100644
--- a/python/port/genhdr/qstrdefs.in.h
+++ b/python/port/genhdr/qstrdefs.in.h
@@ -534,4 +534,5 @@ Q(nodename)
 Q(release)
 Q(version)
 Q(machine)
+Q(rename)
 
diff --git a/python/port/mod/os/modos.cpp b/python/port/mod/os/modos.cpp
index fe6576a39..d78b92c45 100644
--- a/python/port/mod/os/modos.cpp
+++ b/python/port/mod/os/modos.cpp
@@ -62,3 +62,39 @@ mp_obj_t modos_remove(mp_obj_t o_file_name) {
   return mp_const_none;
 }
 
+mp_obj_t modos_rename(mp_obj_t o_old_name, mp_obj_t o_new_name) {
+
+  size_t len;
+  const char* old_name;
+  const char* new_name;
+  old_name = mp_obj_str_get_data(o_old_name, &len);
+  new_name = mp_obj_str_get_data(o_new_name, &len);
+
+  Ion::Storage::Record record = Ion::Storage::sharedStorage()->recordNamed(old_name);
+
+  if (record == Ion::Storage::Record()) {
+    mp_raise_OSError(2);
+  }
+  
+  Ion::Storage::Record::ErrorStatus status = record.setName(new_name);
+
+  switch (status) {
+    case Ion::Storage::Record::ErrorStatus::NameTaken:
+      mp_raise_OSError(17);
+      break;
+    case Ion::Storage::Record::ErrorStatus::NotEnoughSpaceAvailable:
+      mp_raise_OSError(28);
+      break;
+    case Ion::Storage::Record::ErrorStatus::NonCompliantName:
+      mp_raise_OSError(22);
+      break;
+    case Ion::Storage::Record::ErrorStatus::RecordDoesNotExist:
+      mp_raise_OSError(2);
+      break;
+    default:
+      break;
+  }
+  
+  return mp_const_none;
+}
+
diff --git a/python/port/mod/os/modos.h b/python/port/mod/os/modos.h
index cc7068952..097473530 100644
--- a/python/port/mod/os/modos.h
+++ b/python/port/mod/os/modos.h
@@ -2,3 +2,4 @@
 
 mp_obj_t modos_uname();
 mp_obj_t modos_remove(mp_obj_t o_file_name);
+mp_obj_t modos_rename(mp_obj_t o_old_name, mp_obj_t o_new_name);
diff --git a/python/port/mod/os/modos_table.c b/python/port/mod/os/modos_table.c
index 7aa5663e5..7562a95b8 100644
--- a/python/port/mod/os/modos_table.c
+++ b/python/port/mod/os/modos_table.c
@@ -2,11 +2,13 @@
 
 MP_DEFINE_CONST_FUN_OBJ_0(modos_uname_obj, modos_uname);
 MP_DEFINE_CONST_FUN_OBJ_1(modos_remove_obj, modos_remove);
+MP_DEFINE_CONST_FUN_OBJ_2(modos_rename_obj, modos_rename);
 
 STATIC const mp_rom_map_elem_t modos_module_globals_table[] = {
   { MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_os) },
   { MP_ROM_QSTR(MP_QSTR_uname), &modos_uname_obj},
   { MP_ROM_QSTR(MP_QSTR_remove), &modos_remove_obj},
+  { MP_ROM_QSTR(MP_QSTR_rename), &modos_rename_obj},
 };
 
 STATIC MP_DEFINE_CONST_DICT(modos_module_globals, modos_module_globals_table);