Wayne Clay Howell Chappelle (born February 16, 1921 – died July 8, 1993), known professionally as Wayne Howell, was a voice-over announcer for the NBC television and radio networks from 1946 through 1985. He was one member of a core group of New York-based announcers including Don Pardo, Bill Wendell, Jerry Damon, Arthur Gary, Mel Brandt and Howard Reig who handled not only introducing and closing programs, but also teasers and promotions for the network's shows.

Howell's radio announcing credits included The Martin and Lewis Show, a 1950s version of The Chamber Music Society of Lower Basin Street, The NBC Radio Theatre, and Monitor. Among the television programs he announced on were Broadway Open House, Music Bingo, Dotto, Say When!!, Young Doctor Malone, Concentration, and Jackpot!. From 1966 to 1985, he was announcer for the Miss America Pageant. Howell presumably provided voice-overs for numerous other NBC programs during his tenure, often as a substitute for the show's regular announcer.

Following his retirement from NBC, Howell moved to Broward County, Florida. He died in Pompano Beach at age 72.