Can I drive my wife's car in Poland on a GB licence?

Can I drive my wife's Polish registered car with insurance in her name in Poland on a British license ?

I'm almost certain that you can (I would myself) but you should probably double check with her insurance company just to make completely sure (I'd hope to do that myself, once I got round to it).

Yes you can, you can use any EU license to drive a car in Poland. Likewise using a Polish license in the UK (although it has to be a new Polish license I believe because the older ones were laminated and not very secure against forgery).

But checking with the insurance company that they don't have some pointless clause limiting insurance to only holders of Polish licences (which wouldn't be legal) would be best practice.

You make a good point, insurance companies will do pretty much anything to get out of paying you what they owe.

Thanks very much Harry that's a good point. I'll check that.

It's good to check with your provider.
Before my auld lad come over for a visit a year or 2 ago I called mine to make sure too and they said it was fine so long as he had my permission to drive the car.