grand slam

• Grand slam (baseball), a home run with the bases loaded.
• Grand Slam (tennis) holding the titles of the Australian Open (tennis), French Open, Wimbledon and U.S. Open simultaneously.
• Grand Slam of golf, winning The Masters, U.S. Open, The Open Championship (British Open), and the PGA Championship in one year
• Grand Slam (Rugby Union)
• Grand Slam Champion of professional wrestling
• Grand Slam (PBA) of the Philippine Basketball Association
• In cyclo-cross, winning the World and National Championships, the Superprestige, the GvA Trophy, and holding the No. 1 spot on the UCI rakings in one year
• In NASCAR, the Daytona 500, Aaron's 499, Coca-Cola 600, and Southern 500. The "grand slam" distinction was labeled in 1985 with the inception of the Winston Million, and discontinued after 2004, when the Ferko lawsuit forced NASCAR to discontinue the Southern 500, and the Grand Slam.
• In contract bridge, bidding for and winning all the tricks in one hand
• In snooker, holding the Grand Prix, British Open, UK Championship, Irish Masters, Welsh Open, European Open, Players Championship and Embassy World Championship titles at the same time
• In ski jumping, winning the Four Hills Tournament
• In American professional sports, those cities which have at least one franchise in all four major professional sports leagues (Grand Slam Cities)
• In beauty pageantry, when a country wins more than one of the Big Four events in a single year
• In acting, winning major awards in the same category
• More generally, winning a grand slam often means winning all competitions entered or at a certain level.

Grand Slam may also refer to:

• Grand Slam (band), a band formed by Thin Lizzy bassist/vocalist Phil Lynott
• Grand Slam bomb, a larger version of the Tallboy bunker buster bomb
• Grand Slam (TV series), a quiz show shown in the UK in 2003
• Grand Slam (album), by Australian band Spiderbait
• Grand Slam is a character from the G.I. Joe universe.
• Grand Slam (Denny's), a large breakfast meal sold at Denny's restaurants
• Grand Slam (1967 film), A 1967 Italian Heist Movie
• Grand Slam (1978 film), A 1978 Welsh TV movie comedy
• Operation Grand Slam: A plan by Auric Goldfinger to "heist" Fort Knox in Goldfinger