30th Academy Awards
30th Bombardment Squadron
30th Canadian Parliament
30th Central Scientific Research Institute, Ministry of Defence (Russia)
30th Chess Olympiad
–30– (The Wire)
30th G8 summit
30th GMA Dove Awards
30th Heavy Brigade Combat Team
30th Hong Kong Film Awards
30th Infantry Division (United States)
30th Infantry Regiment (United States)
30th Legislative Assembly of British Columbia
30th Legislative Assembly of Ontario
30th National Assembly of Quebec
30th National Film Awards
30th New York State Legislature
30th Rifle Division
30th Tactical Missile Squadron
30th United States Congress
30th Waffen Grenadier Division of the SS
30th Young Artist Awards