An alligator lizard is a any one of various kinds of lizards that have some shared characteristics. The term may specifically refer to:
Species of the genus Elgaria:

• Elgaria coerulea (Northern alligator lizard)
• Elgaria kingii (Madrean alligator lizard)
• Elgaria multicarinata (Southern alligator lizard)
• Elgaria panamintina (Panamint alligator lizard)
• Elgaria parva (pygmy alligator lizard)
• Elgaria paucicarinata (San Lucan alligator lizard)
• Elgaria velazquezi (Central Peninsular alligator lizard)