Do you mean figurative rather than (what appears to us) abstract? Here's a few -
http://www.themodernantiquarian.com/site/11311/goatscrag.html
http://www.themodernantiquarian.com/site/3067/creswell_crags.html

there's axes and a dagger at Stonehenge-
http://www.themodernantiquarian.com/site/609/stonehenge_graffiti_dagger_stone.html

there's supposed to be a couple of axes(?) carved in relief at Boscawen-un but I've never seen pictures of them. For the foot fetishists there's these -
http://www.themodernantiquarian.com/site/3258/pool_farm_cist.html
http://www.themodernantiquarian.com/site/248/calderstones.html

I think there are some figurative carvings in Scotland but the sites escape me at the moment.

-Chris

Some carvings are open to interpretation as to whether they are figurative or not, like this -

http://www.themodernantiquarian.com/site/5655/man_stone.html

Paul B seems convinced!

-Chris

And of course there is concentric rings found on a stone at Knowlton henge all the way down south...

http://www.ucl.ac.uk/prehistoric/past/past35.html#knowlton

Chris Collyer wrote:
there's supposed to be a couple of axes(?) carved in relief at Boscawen-un but I've never seen pictures of them.

-Chris

Hi Chris,

They're definitely there, but pretty impossible to photograph at the times I've been there. Very faint, but nevertheless two hand-axe shapes.

Alken

Chris Collyer wrote:
I think there are some figurative carvings in Scotland but the sites escape me at the moment.

-Chris

The deer at Ballochmyle is what I was thinking of and couldn't remember -

http://www.themodernantiquarian.com/site/156/ballochmyle_walls.html

-Chris