Richard Francis Stelmaszek (October 8, 1948 – November 6, 2017) was an American Major League Baseball catcher, and bullpen coach for the Minnesota Twins. Stelmaszek spent 32 consecutive seasons (1981–2012) on the Twins' coaching staff and was the longest-tenured coach in Minnesota history. Stelmaszek trails only Nick Altrock, who spent 42 consecutive years (1912–1953) as a coach with the old Washington Senators (the predecessor to the Twins' franchise), and Manny Mota, who worked as a Los Angeles Dodgers coach for 34 straight years (1980–2013), as the longest-tenured coach in continuous service with one franchise in MLB history.