Beatrice "Bea" Alda (born August 10, 1961) is an American actress and filmmaker who appeared in The Four Seasons and Men of Respect. She is the daughter of Alan and Arlene Alda and the sister of actress Elizabeth Alda and Eve Alda.

Alda and her wife filmmaker Jennifer Brooke co-directed and produced the 2008 documentary film "Out Late", which follows the lives of people who came out as gay, lesbian, and transgender while they were senior citizens. They also co-directed and produced the 2016 documentary "Legs: a Big Issue in a Small Town" about a controversy surrounding a giant Larry Rivers sculpture in a small American town.