Susan Price is a character in Mansfield Park. She is the younger sister of William Price and Fanny Price, and is one of ten children of Mr. and Mrs. Price. Through Mrs. Price, she is the niece of Sir Thomas and Lady Bertram, a baronet and his wife; and Mr. and Mrs. Norris, a clergyman and his wife.

One of her most priced possessions is a silver knife her late sister Mary left her on her death. Her youngest sister Betsey occasionally stole it from her until Fanny bought her a new one.