Will Estes (born William Estes Nipper, October 21, 1978 in Los Angeles, California) is an American actor best known for his role as JJ Pryor, on the NBC drama American Dreams. In 2010, he joined the cast of Tom Selleck's new CBS police drama Blue Bloods. In the series, he plays Jamieson "Jamie" Reagan, a New York Police Department officer and the younger son of the fictional police commissioner, played by Selleck.

Estes' break-out movie role was Seaman Ronald 'Rabbit' Parker on U-571. Early in his career, he did many commercials including Fruit of the Loom and numerous guest starring roles in shows like Highway to Heaven and Santa Barbara. Then he was chosen out of 700 other kids for the series The New Lassie. Since then he has had many starring roles in TV shows and he dabbled in the Music Video industry. He has appeared in Meat Loaf's video "Objects In The Rear View Mirror May Appear Closer Than They Are" (from Bat out of Hell II: Back into Hell) and was in Bon Jovi's video "It's My Life" with Shiri Appleby.