List of gay, lesbian or bisexual people: Ba–Bh

This is a partial list of notable people who were or are gay men, lesbian or bisexual.

The historical concept and definition of sexual orientation varies and has changed greatly over time; for example the general term "gay" wasn't used to describe sexual orientation until the mid 20th century. A number of different classification schemes have been used to describe sexual orientation since the mid-19th century, and scholars have often defined the term "sexual orientation" in divergent ways. Indeed, several studies have found that much of the research about sexual orientation has failed to define the term at all, making it difficult to reconcile the results of different studies. However, most definitions include a psychological component (such as the direction of an individual's erotic desire) and/or a behavioural component (which focuses on the sex of the individual's sexual partner/s). Some prefer to simply follow an individual's self-definition or identity.