What nicknames did Peter Lawford go by?

Peter Lawford had a few nicknames, but the most common and well-known was simply "Peter." He was also sometimes called "Lawford," especially in professional contexts.

While there's no evidence of other widespread nicknames, it's possible he had some within his family or close circle of friends.

It's worth noting that his name itself, "Peter Lawford," is quite distinctive and easily recognizable, so there wasn't a strong need for elaborate nicknames.