£2 Coin 2003 - Is It Real?

yes it's real, but on the other side it will say "St Helena and Ascension"
https://en.numista.com/catalogue/pieces15645.html

Not often found in the UK those, since St Helena is quite some distance :)

That is the Reverse (back) that you are showing. Please
show a photo of the Obverse (front) of the coin also.

to the Community!

I'm a little worried about the size of the gap between the ore and rim on the obverse, but that might be just the lighting. Otherwise it seems fine.

Counterfeiters want their coins to look "normal" and "ordinary", because people looking closely at their coins is the last thing counterfeiters want to see happening. Finding a Saint Helena coin in change is not "normal" - people are going to look closely at it; exactly the kind of scrutiny a counterfeiter would try to avoid.

And counterfeiters aren't likely to target Saint Helena itself; the market's just too small and remote.