Abstract: The present animal cooling mat apparatus includes a mat shell, at least one coolant sheet, at least one cushioning pad, and at least one foam pad. The coolant sheet is removably located within the mat shell, with the cushioning pad removably located within the mat shell above the at least one coolant sheet and the insulating pad is located within the mat shell below the at least one coolant sheet. The coolant sheet provides a heat sink to rapidly cool an animal, while the cushioning pad facilitates heat transfer and the insulating pad reduces the amount of ambient heat transferred from the environment. Multiple apparatuses may be combined to accommodate larger animals.