Justin Richard Towles (born February 11, 1984) is a former American professional baseball catcher.

He began the year with the Single-A Salem Avalanche, then the Double-A Corpus Christi Hooks, and by the end of the minor league season, was with the Triple-A Round Rock Express.

He faced relief pitcher Matt Wise as a pinch hitter and flied out to left fielder Mel Stocker.

[1] On June 5, 2008, Towles was optioned to Triple-A Round Rock after hitting .145 over 42 games for the Astros.

He competed with Humberto Quintero and Lou Palmisano for the starting or back-up job in spring training in 2009, but instead began the season in Round Rock when the team had signed Iván Rodríguez on March 16.

After Quintero was designated to the 15 Day Disabled List, Towles was called up to the Astros to serve as back-up catcher for Rodriguez.

He was the Opening Day starter the following year and wound up starting 13 of the team's first 26 games, splitting time with Quintero.

He spent the entire 2012 season in the minor leagues, playing in 52 games with the Rochester Red Wings, the Twins Triple-A affiliate.

On March 14, 2014, Towles signed with the Bridgeport Bluefish of the Atlantic League of Professional Baseball.