Dennis Michael Moeller (born September 15, 1967) is a former Major League Baseball pitcher who played for the Kansas City Royals and Pittsburgh Pirates from 1992 to 1993.

Prior to being drafted, Moeller attended Cleveland High School in Reseda, California.

In 1989, Moeller split time between the Baseball City Royals and Memphis Chicks.

He spent all of 1991 with the Chicks and Omaha Royals in 1991, making a combined total of 25 starts, and going 11-8 with a 2.95 ERA between them.

Two of the hits he gave up were back-to-back home runs by Kelly Gruber and Candy Maldonado to start off the top of the second inning.

In 18 innings of work, he allowed 24 hits, 14 earned runs, 11 walks and he struck out only six batters.

Despite having a perfect record, he spent the majority of his time in the minors, where he made 24 appearances for the Buffalo Bisons (11 starts).