- Trick or Treating, every house with lights on, malls, shopping centers
- Halloween Tattoo Party, Baltimore Tattoo Museum, all day long
- Monster Mash Costume Contest, Wind-Up Space, 8 p.m.
- Baltimore Rock Opera Society Halloween Party, Single Carrot Theatre, 8 p.m.
- Cirque Victoriana, Creative Alliance, Creative Alliance, 8 p.m.
- Maryland Brewer's Harvest, The Meyerhoff, noon to 4; 5 to 10 p.m.
- Moe Gallery Opening, 49 West Cofeehouse and Gallery, 5 p.m.