The Sierra Club has made the following endorsements:
- Anthony Brown and Ken Ulman, for Governor and Lt. Governor.
- Brian Frosh for Attorney General.
- Clarence Lam, Eric Ebersole, and Terri Hill for District 12.
- Guy Guzzone, Shane Pendergrass and Frank Turner for District 13.
- Ryan Frederic and Tom Coale for District 9.
- Courtney Watson for Howard County Executive.
- Calvin Ball, Jen Terrasa, Alan Schneider for County Council.