Deirdre "Dede" W. Alpert (born October 6, 1945) is an American former state senator, assembly person and school board member in San Diego, California.

She married Michael Alpert, an attorney, in Los Angeles and the couple moved back to San Diego, where they had three daughters: Alison, Kristin, and Lehn.

[1][2] Prior to entering politics, Alpert was a member of the Solana Beach School District Board from 1983 to 1990, becoming the president in 1987.

[4] She served in the Assembly until 1996 and was a member for the California State Senate from 1996 to 2004, representing the 39th district in San Diego County.

[10] She was inducted into the San Diego County Women's Hall of Fame in March 2018 for her past Senate leadership.