diff --git a/swh/objstorage/factory.py b/swh/objstorage/factory.py
--- a/swh/objstorage/factory.py
+++ b/swh/objstorage/factory.py
@@ -22,11 +22,12 @@
     "pathslicing": PathSlicingObjStorage,
     "remote": RemoteObjStorage,
     "memory": InMemoryObjStorage,
-    "weed": WeedObjStorage,
+    "seaweedfs": WeedObjStorage,
     "random": RandomGeneratorObjStorage,
 }
 
 _STORAGE_CLASSES_MISSING = {}
+_STORAGE_CLASSES_DEPRECATED = {"weed": "seaweedfs"}
 
 try:
     from swh.objstorage.backends.azure import (
@@ -75,6 +76,13 @@
         ValueError: if the given storage class is not a valid objstorage
             key.
     """
+    if cls in _STORAGE_CLASSES_DEPRECATED:
+        warnings.warn(
+            f"{cls} objstorage class is deprecated, "
+            f"use {_STORAGE_CLASSES_DEPRECATED[cls]} class instead.",
+            DeprecationWarning,
+        )
+        cls = _STORAGE_CLASSES_DEPRECATED[cls]
     if cls in _STORAGE_CLASSES:
         if args is not None:
             warnings.warn(
@@ -85,7 +93,6 @@
             # TODO: when removing this, drop the "args" backwards compatibility
             # from swh.objstorage.api.server configuration checker
             kwargs = args
-
         return _STORAGE_CLASSES[cls](**kwargs)
     else:
         raise ValueError(