can someone identify this please

it looks like to me some kind of cotoneaster but which one???

many thanks

Really need a little more info. Opposite or alternate leaves? Got a picture of a branch or the plant? Looks like a viburnum but that's not much to go on...

You're just guessing unless you see it in bloom. Also we would need a picture showing the plant habit.
Iris

I'd be almost positive it is not Cotoneaster. But we do need to see more.

Viburnum Plicatum.Google it to make sure

That has serrated leaves.