Lucas Bouk is an American mezzo-soprano opera singer and actor from Rochester, New York. He came out in 2018 as a trans man, and played his first role as an openly trans man in a jazz opera character written with him in mind. A play about his transitioning was staged in 2018, and revived in 2019. In June 2019, he became the first openly transgender opera singer in a featured role written for a transgender singer in Stonewall.