Adler was born in Montreal, Canada; she later became an American citizen.
From 2001 to 2011, Adler was in a relationship with actress Sara Gilbert, with whom she had two children. As of 2014, she was engaged to producer and writer Liz Brixius.
Allison Adler is a television producer and writer. She is best known as the co-creator of Supergirl and The New Normal, and a producer of Chuck and Family Guy.