Halloween Costume Contests in Cambridge 2026

Explore The Best Of Pumpkin Costume Parties & Events in Cambridge

ACOTAR Book #6 Midnight Release Party at Harvard Book Store

 Harvard Book Store 26 Oct 2026
USD 6 TO 37

Haunted Haus Drag and Dance Party

 Lamplighter Brewing Co. - CX 23 Oct 2026
USD 13

Spooky Saturday 2026

 Urban Park (UP) roof garden 17 Oct 2026
FREE

A "HEROES" HALLOWEEN

 40 Prospect Street, Cambridge, MA, United States, Massachusetts 02139 31 Oct 2026

(18+) The Biggest F**king Halloween College Party - presented by Boston Connect @Descent Night Club

 Descent 29 Oct 2026

Retro Rewind: Twilight

 Urban Park (UP) roof garden 15 Oct 2026
FREE

Halloween Salsa/Bachata Costume Party, Friday 10/30

 Tambó Salsa 30 Oct 2026

JOIN US FOR HALLOWEEKEND AT HERBWELL!

 Herbwell Cannabis, Massachusetts Avenue, Cambridge, MA, USA 30 Oct 2026
FREE

Pulso Halloween Milonga

 Margaret Jewett Hall, First Church in Cambridge, Congregational, U.C.C. 31 Oct 2026

Harvard Book Store After Dark

 Harvard Book Store 31 Oct 2026
FREE

6th Annual Salsa & Bachata Halloween Party

 41 Hampshire St 31 Oct 2026
USD 23

The Vampire Rave on the River

 American Legion - Marsh Post 442 30 Oct 2026
USD 23 TO 130

Hot & Sexy Halloween Costume Party

 Middle East - Corner/Bakery 24 Oct 2026
CAD 52

Cambridge Official Halloween Bar Crawl 2026

730 Tavern, Kitchen & Patio 31 Oct 2026