Onyx Saturdays Halloween Night Costume Party is a costume party at ONYX Rooftop Lounge in Washington, DC, on Saturday, October 31 from 10 PM to 3 AM. That's on Halloween itself, and it is listed as free to attend. Costumes are part of the fun. Washington has 6 other Halloween events within three days of this one.
Saturday, October 31 · 10 PM – 3 AM
UTC-04:00ONYX Rooftop Lounge | Washington, DC
TicketsUSD 0.00
ONYX Rooftop Lounge, 1815 M Street Northwest, Washington, United States
Juan Pierce
It is on Saturday, October 31, 2026, from 10 PM to 3 AM, on Halloween itself.
It takes place at ONYX Rooftop Lounge, 1815 M Street Northwest, Washington, United States.
Yes, it is listed as free to attend. Check the event details in case registration is required.
Yes, costumes are encouraged.
It runs for about 5 hours, from 10 PM to 3 AM.
Union Market
555 8th St NW
Ciel - Downtown
Grand Central Restaurant & Bar
1492 4th St SE
Gaia Supperclub
Spirit of Washington DC by Hornblower
SPIN
Hard Rock Cafe
Air Restaurant
The Ven at Embassy Row, Washington, D.C., a Tribute Portfolio Hotel
Busboys and Poets
Officina at The Wharf
Officina at The Wharf
DC Comedy Loft and Bier Baron Tavern
DC Comedy Loft and Bier Baron Tavern
Hosting a Halloween event in Washington? Get it listed on HuntHalloween.
Promote your event
