diff --git a/torch_geometric/graphgym/train.py b/torch_geometric/graphgym/train.py
index d391e9de21a8..6060bbd5d6c1 100644
--- a/torch_geometric/graphgym/train.py
+++ b/torch_geometric/graphgym/train.py
@@ -62,6 +62,15 @@ def train(
         callbacks.append(ckpt_cbk)
 
     trainer_config = trainer_config or {}
+
+    # Allow custom callbacks to be passed via trainer_config
+    if 'callbacks' in trainer_config:
+        custom_callbacks = trainer_config.pop('callbacks')
+        if isinstance(custom_callbacks, list):
+            callbacks.extend(custom_callbacks)
+        else:
+            callbacks.append(custom_callbacks)
+
     trainer = pl.Trainer(
         **trainer_config,
         enable_checkpointing=cfg.train.enable_ckpt,