Gabrielle Dennis is an American actress and comedian, best known for starring in the sketch comedy HBO show A Black Lady Sketch Show.

A Black Lady Sketch Show is an American sketch comedy television series created by Robin Thede for HBO. The show consists of comedy sketches performed by a main cast of Black women, consisting of producer and creator Thede, Gabrielle Dennis, and Skye Townsend. Alumni cast members include Quinta Brunson, Laci Mosley, and Ashley Nicole Black. The show has featured guest stars such as Issa Rae, Vanessa Williams, Angela Bassett, Laverne Cox, Nicole Byer, Amber Riley, Miguel, Omarion, Raven-Symoné, Kelly Rowland, Tia Mowry, Tahj Mowry, Gabrielle Union, Kyla Pratt, Wanda Sykes, and Patti LaBelle.