|Family|| Unknown father|
|Powers and Abilities||Can produce milk, walks on two legs, strength|
|Played By||Leigh-Allyn Baker|
|Status||Alive and lactating|
|Appeared In||Back at the Barnyard, Back at the Barnyard Slop Bucket Games|
She has a crush on Otis, as revealed in Cowman: The Uddered Avenger and she has a love shrine to Otis, though neither of them ever admitted it, but in "King Cud," the two of them were almost married. In the episode when her cousin Veronica visited and attracted Otis, Pip, Freddy, Peck, Pig and Duke, Veronica said that she would take Otis back with her referring to him as "the big cute one", then Abby got really angry, and said that she has to take "Otis" out of her trance, then Bessy correcting her saying, "Don't you mean all of them?", then she did had an embarrassed-sounding laugh while saying, "Yeah, I mean them."
Abby is a bottle blonde that is not her natural hair color. She has a cousin named Veronica, a crazy uncle, eighteen brothers and is a tomboy who has a love for wrestling and has been challenged by Otis and defeated him in a cage match. Although she claims to have wrestled gators, she still gets beaten up by Krouser Krebs.
Abby is a tan, slim, cow with dark tan spots. She also has an udder. She has dyed blonde hair kept in a braid, tied with a purple ribbon. She also has blue eyes and gold hoop earings. Her hoofs tends to be shinier compared to the others.
Abby is friends with everyone, though Freddy's unstable mental health frequently strains their friendship. Abby is also very athletic, allergic to petunias, has an Obsessive-Compulsive addiction for organizing, and loves cats.
In one episode, it is revealed that Abby has some kind of a double personality, in which she was acting like a very nice innocent cow, then the other second, she was acting like a strong, rough cow. She seems to be very competitive and very pushy and stubborn at times. She is known to be very rough as seen in one episode that when she said her cousin was exactly the same as her, they were terrified and imagined her doing violent stuff to Otis, Pip, Freddy, Peck, Pig and Duke.
- Abby's hooves are shinier than most.
- In "Cupig," it is revealed that Abby uses yellow hair dye.
- It is unknown how, why, or when she joined the Barnyard as she was the replacement for Daisy.