Heidi is the name of two female characters that appeared on Married... with Children. This could refer to:
- Heidi (Season 8), an applicant at Gary's Shoes & Accessories for Today's Woman, played by Melissa Behr, in the season 8 episode, "Scared Single"
- Heidi (Season 9), a German hitchhiker played by Nicole Nagel in the season 9 episode, "Driving Mr. Boondy".