Mojito Blanco: This Mexican variation uses tequila instead of rum.
Fruit Mojito: Add fruit juice or puree such as grapefruit, pears, raspberries, strawberries, or oranges.
South Side: Substitute gin for the rum (add seltzer for a South Side Fizz).
Big Batch: To make a pitcher of 8 Mojitos, muddle 80 mint leaves (about 4 ounces or 2-3 bunches) with the juice of 4 limes and 1/2 cup sugar (or more to taste). Add 1 1/2 cups (12 ounces) white rum. Add ice and top with club soda.