Henry Blair (born David Lewis Blakely; 1932 or 1933) is an American former film and radio actor. Born in Los Angeles, Blair is the son of Lewis Herbert Blakely and Winifred Myrtle "Winnie" Pollard, the latter a British Columbia native and a skilled performer in her own right, who—after emigrating from Vancouver to Los Angeles in 1923—founded and directed the Winifred Pollard School of Dancing from 1925 until at least 1935. The family resided in Roscoe, California, where Kevin attended the Vineland Elementary School. He later attended Hollywood Professional School and Chapman College.

Of particular note among Blair's recurring radio credits are his portrayal of Ricky Nelson on The Adventures of Ozzie and Harriet from its inception in 1944 until 1949 (at which point Nelson himself joined the cast), as well as the roles of "Donnie Henderson" on Beulah, "Skipper" on One Man's Family, "Little Quincey" on The Baby Snooks Show, "Eddie Powers" on Masquerade, and Blair's favorite among his radio characters, "Little Beaver" on Red Ryder. One especially notable non-recurring highlight was the April 29, 1947 episode of My Favorite Story, featuring Blair as the title character in Charles Dickens' Oliver Twist, as adapted for radio by Jerome Lawrence and Robert E. Lee.