Stephanie Laurine Urkel is Steve Urkel and Laura Winslow's future daughter. She was going to be born during the show's tenth season, but the series was cancelled before any mention of her could take place. Her birth was to take place in the final episode, Family Matters to The End part 2. She would be 18 in 2017.
The name Stephanie was originally used in the episode Father of the Bride as the name of one of the "Urkel kids" in Carl's nightmare. This particular character was a Caucasian girl with blonde hair, described as being adopted from an orphanage and named Stephanie Sue Urkel