Hi Edith. Here's a good site that has listings for both British and American English: http://www.uta.fi/FAST/US1/REF/usgbdiff.html#b2a

british english and american english

Yes, Jo Jo is right. As is Peachy. Sometimes the British themselves also refer to their language as "His/Her Majesty's English" (Her, these days, of course). Though it's broader than just "not-American" English; it's basically all proper British English (excluding slang from their own island).

Jo Jo's answer is correct, but people from the UK may be annoyed that people call their language a 'type' of English, considering they came up with the language originally. ;-) Still, 'British English' makes it clear that it's not the 'American English' style.

British English or Ameirican English