Helen Seinfeld
Gender	Female
Family	Mother: Nana Husband: Morty Seinfeld Brother: Uncle Leo Son: Jerry Seinfeld Daughter: Unnamed daughter
First Appearance	"The Stakeout"
Last Appearance	"The Finale"
Occupation	Retired
Portrayed By	Liz Sheridan
[Source]

Helen Seinfeld, played by Liz Sheridan, is a fictional character on Seinfeld. She is Jerry Seinfeld's mother. Her husband—Jerry's father—is Morty Seinfeld.

Helen's catchphrase in the series is her rhetorical question about Jerry, "How could anyone not like him?"

According to Jerry, Helen has never once set foot in a natural body of water. She is a retiree who lives in Florida.

Anytime Jerry's father is on the phone Helen is always talking with him on the same line.

As shown in The Raincoats (both parts), Helen and Jerry have an equal hatred to Newman, and, like Morty, do not like the Costanza family.