|image = File:Abagail_and_Sam_as_Will.png
|caption = A grown up Abigail (Melora Hardin) with Sam as Will Kinman.
|gender = Female
|born= 1944, estimated
|birth_place = Louisiana
|description= mother of Sammy Jo Fuller
|relatives =Sammy Jo Fuller (daughter)
Sheriff Clayton Fuller (father)
Laura Fuller (mother)
Will Kinman (fiancée ) |series = Quantum Leap |played_by = Kimberly Cullum (as child) in TV series episode Trilogy Part I: One Little Heart
Melora Hardin in Trilogy Part II: For Your Love and Trilogy Part III: The Last Door"
Sam has to save Abigail not once, but three different times (first into a leap as her father, second as her fiancee and third as her lawyer – "Trilogy", parts 1, 2, & 3 respectively). When he leaps into the man she is set to marry, he falls in love with her himself and fathers a daughter, which turns out to be Sammy Jo. Sammy Jo would have high IQ and a photographic memory, just like Sam. Later, Al reveals that Sammy Jo is to become a part of Project Quantum Leap. The part of Abigail as an adult is played by actress Melora Hardin in For Your Love: Part II and The Last Door: Part III. The part of Abigail as a child is played by actress Kimberly Cullum (who also plays daughter Sammy Jo in Part III) in Trilogy: Part I.