William David Dameshek (born June 11, 1970) is an American television writer and radio personality. Dameshek is a football analyst, writer and podcaster.

Dameshek began writing for cable television hits including Fox Sports Net's Sports Geniuses and Comedy Central's Battlebots. He received his first big break in 2001 when he was hired as a writer on Comedy Central's The Man Show, hosted by Jimmy Kimmel and Adam Carolla. Dameshek was hired for his trademark "Upper Hand" routine, a bit developed from his Best Man speech. He worked as a staff writer for the third and fourth seasons of The Man Show.

While working on The Man Show, Dameshek became co-host of a Fox Sports Radio show with radio veteran Kent Voss, upon joining Fox Sports Radio Dameshek vowed to "cut out the noise". This became a tentpole belief for Dameshek which has followed him throughout his career. The late-night show aired for about four months. Dameshek also wrote and appeared in several segments with Jimmy Kimmel on Fox's NFL pre-game show. It was also at this time that Dameshek began referring to himself as "Billy D. Dameshek", an homage to Billy Dee Williams, the actor who played Lando Calrissian.

Dameshek moved on to write for the second and third seasons of Comedy Central's Crank Yankers, co-created by Kimmel and Carolla, as well as for I'm With Busey and Trigger Happy TV. In 2002, he began writing for Kimmel's new late-night talk show on ABC, Jimmy Kimmel Live!, where he made several appearances in addition to his main responsibility of working on the show's nightly monologue.

In 2004, Dameshek became the weekly sports correspondent on the Los Angeles FM station Indie 103.1's Mighty Morning Show, hosted by Dicky Barrett, while making periodic appearances on regional and national ESPN Radio programs.

The Adam Carolla Show debuted in January 2006, recorded in Los Angeles and aired in syndication on stations across the western United States. Dameshek was a regular cast member on the show from the beginning, serving as the show's official sports reporter. In December 2006, he and several other staff members were cut from the show, a move attributed to a ratings drop in the second half of the year. Dameshek wrote in a December 17 post on the show's online message board that he had been fired due to the manipulations of Teresa Strasser and would be replaced by Danny Bonaduce; CBS officially announced four days later that Bonaduce would be joining the show in Dameshek's stead.

From January to July 2007, Dameshek hosted Dave Dameshek's Sports Contraption on radio station WTZN (now KDKA-FM) in his hometown of Pittsburgh. The show's guests trended towards nontraditional sports personalities rather than well-known sports journalists. Regular guests included the Pittsburgh Tribune-Review's Rob Rossi and John Harris, and the creators of the websites Pitt Blather and Mondesi's House. ESPN.com writer Bill Simmons guest-hosted in April.

In November 2007, Dameshek debuted a new sports-oriented radio show, The Dave Dameshek Show, broadcast by ESPN Radio on KSPN 710 AM in Los Angeles.