Patty is a character in the comic strip Peanuts by Charles M. Schulz (not to be confused with Peppermint Patty, who is a totally different character). Her closest friend is Violet. The two appeared very early (Patty even appeared in the first strip, along with Charlie Brown and Shermy), but lacking the discerning characteristics of characters such as Lucy, Linus, or Schroeder, they became less prominent as years went by.
Patty plays outfield on Charlie Brown's baseball team.