Alerce is the Spanish word for two unrelated trees Larix (larch) and Fitzroya, albeit the name was first applied to the larch.

• Alerce, Chile, a Chilean town
• Alerce Glacier
• Fitzroya cupressoides, a species of evergreen tree from South America, unrelated to the larch
• Alerce Costero National Park
• Alerce Andino National Park
• Alerce Prize, a Chilean literature award
• Los Alerces National Park
• Emepa Alerce, an Argentine train used on commuter rail services
• Alerce (wood type), the wood of the sandarac tree
• Alerce, la otra música, a Chilean record label