Gregory A. Weimerskirch (born 8 July 1968; age 56) is an art director who worked as assistant art director on Star Trek: The Next Generation and Star Trek Generations.
Born in Pittsburgh, Pennsylvania, USA, he received an Excellence in Production Design Award nomination from the Art Directors Guild in 1999 in the category Television Series for his work on Seven Days.
Early credits include as assistant art director for ILM on Backdraft (1991), as designer on A Walton Thanksgiving Reunion (1993), as art director on the television series Life Goes On, Prefontaine (1997) and Dead Man on Campus (1998), as production designer on the short film Toxic Remedy (1997), and as assistant art director on Dogma (1999).
Weimerskirch worked in the art department of Star Wars: Episode II – Attack of the Clones (2002) and Star Wars: Episode III – Revenge of the Sith (2005). Further credits as art director include American Wedding (2003) and The Ellen DeGeneres Show (2003). He also worked as assistant art director on Flags of Our Fathers (2006) and as set designer on Unstoppable (2010, starring Chris Pine).
Weimerskirch later worked as assistant art director on I Am Number Four (2011, with art directors Gary Kosko and John B. Josselyn) and Contraband (2012, with art director Dennis Bradford) and as art director on The Perks of Being a Wallflower (2012), Jack Reacher (2012), and Promised Land (2012).