Luke Ward is one of the main characters on the FOX series The O.C. Actor Chris Carmack plays the character. The character was written off the show at the end of the first season (2003-2004).

In the show, Luke is a rich, spoiled Newport Beach socialite who does not have much of a tolerance for outsiders, as shown by his fight with another character, Ryan Atwood (who came from Chino), in the pilot episode. However, Luke later reformed his ways and made became good friends with Ryan after he was shot at a party by another person.

Luke was originally dating Marissa Cooper. However, the couple split after a few episodes and Luke eventually became sexually involved with her mother, Julie Cooper. The affair was later discovered by Marissa. At the end, Luke became depressed and decided to leave Newport Beach for Portland. His last line of the season was: "Welcome to Portland, bitch," a reference to his first line in the show on the pilot episode: "Welcome to the O.C., bitch."

He has appeared in the second season, though apparently plays only a minor part in a few episodes.