Football: 1950 FIFA World Cup Final, Brazil v Uraguay @ Maracana, 199,854
Australian Football: Carlton v Collingwood 26 September 1970 @ Melbourne Cricket Ground, 121,696
Cricket: Probably one of the many Indian games at Eden Gardens in Kolkata (Calcutta) - around 120,000 (no official figures have been recorded)
Baseball: Boston Red Sox v Los Angeles Dodgers (pre-season) March 29, 2008 @ Los Angeles Memorial Coliseum, 115,300
American Football: University of Michigan v Ohio State, November 22 2003, 112,118
Rugby Union: Australia v New Zealand 15 July 2000 @ ANZ Stadium, 109,874
Rugby League: St. George Illawarra v Melbourne 26 September 1999 @ ANZ Stadium, 107,999
Gaelic Football: Offaly v Down 1961 @ Croke Park, 90,556
Hurling: Cork v Wexford 1954 @ Croke Park, 84,856
Basketball: Michigan State University Spartans v University of Kentucky Wildcats December 13, 2003 @ Ford Field, Detroit, 78,129
Ice Hockey: Michigan State University v University of Michigan October 6, 2001 @ Spartan Stadium, 74,544 <---- Local derby!
Canadian Football: Toronto v Montreal Tue 09/06/77 @ Montreal Olympic Stadium, 69,093
Handball: TBV Lemgo v THW Kiel (Bundesliga Handball) 12 September 2004 @ Veltins Arena, 30,925

Looks like they like big crowds in Michigan!
There is a chance that the biggest cricket gate may have been at the MCG, but Eden Gardens used to hold 120,000 so it's most likely that the record for cricket (unknown) was in India.
Any corrections or additions are welcome!