Smoked fish

[Odysseus]

for a 9mo? Is this ok?

There's no reason why not. It's certainly not dangerous.
It's more a question of whether or not he/she'll like the taste.

depends how much. many are high in salt and may have added preservatives (like nitrites). Also depends on the fish. I would go for smoked mackerel which is hot smoked (so it's cooked) while others may be raw.