The Tom Collins is a cocktail and a variation on a Gin Sour . It is made of:

• gin
• lemon juice
• sugar
• splash of soda

Shake gin with lemon, sugar and ice. Pour into a Collins glass and top with soda. Garnish with an orange slice, lemon slice, or cocktail cherry. The garnishes vary by region.

Nowadays, commercial "sweet and sour" is often used as a replacement for the sugar and lemon juice.

Various versions replace the gin and rename the drink:

• Brandy Collins (Brandy)
• Jack Collins (Applejack)
• John Collins (Bourbon)
• Mike Collins (Irish whiskey)
• Pedro Collins (Rum), also Rum Collins
• Sandy (or Jock) Collins (Scotch)
• Vodka Collins (Vodka)

See also Tom and Jerry, list of cocktails.