Alanna Noel Ubach (born October 3, 1975) is an American actress, model, voice artist, and singer of Puerto Rican and Mexican descent. She is known for her roles in Coco as Mama Imelda, Legally Blonde as Serena McGuire, and Meet the Fockers as Isabel Villalobos.

She has provided voices for several characters in a number of animated television shows and movies, such as Liz Allan on The Spectacular Spider-Man, the title character on El Tigre: The Adventures of Manny Rivera, Lola Boa on Brandy & Mr. Whiskers, Strudel on Pound Puppies, and four characters in the Oscar-winning animated film Rango. She played the first female assistant, Josie, on Beakman's World.