Two of a Kind is an American sitcom that aired on ABC as part of the network's TGIF line-up, starring Mary-Kate and Ashley Olsen in their first television series since Full House ended in 1995.

Kevin Burke (Christopher Sieber) is a college professor and widower father living in Chicago, Illinois, who believes there is a scientific explanation for everything except how to control his scheming 12-year-old daughters.

The other main character is Carrie (Sally Wheeler), a 26-year-old woman in Kevin's class, who has come late to college after exploring the world.

Carrie is quirky, difficult, beautiful, and quick to speak her mind, so when she answers Kevin's ad for a part-time babysitter for the girls, he is convinced she's nothing but trouble and is in favor of their next-door neighbor Mrs. Baker babysitting Mary-Kate and Ashley.

The girls think she is a dream-sitter come true, and agree to put their differences aside to join forces to make a little chemistry between their by-the-book father and the beautiful woman who seems to drive him crazy in all the right ways.

Kevin has his doubts about hiring Carrie, and thinks that it's more practical to have Mrs. Baker babysit Mary-Kate and Ashley.

After its cancellation, the show gained more of an audience when reruns began airing on ABC Family in the United States.

In Italy, it aired on Disney Channel under the name Due gemelle e una tata (Two Twins and a Nanny) from January until February 2004.