Trinity Wells was the name of a News reporter in the Doctor Who franchise. She has appeared in Doctor Who, Torchwood, and The Sarah Jane Adventures.
Trinity was the name of a little known science fiction film from 2001.
Blade: Trinity was the third film in the Blade triolgy. The triology stars Wesley Snipes as a vampire superhero.
Trinity was also the name of a 1986 video game.
Trinity was the name of a villain in the D.C. comics universe. She was a android woman that housed a computer virus with three faces which represented Time, War and Chaos.
In the Team Tejas comic, Trinity was a superhero who had the ability to create three clones of herself.
Trinity was the 77th most popular girl's name in 2011. The name also refers to the Holy Trinity of the Catholic church, and most usage probably related to the religion.