象科（学名：Elephantidae）是哺乳动物长鼻目中的一科，包括象及已灭绝的猛犸象。象科是陆地上最大的哺乳动物，其特点为其圆筒状长鼻及象牙。象科中大部份的属和物种皆已绝灭，现存的只有二个属：非洲象属及象属（亚洲象）。

象科最早是由约翰·爱德华·格雷在1821年发现。

Elephantidae is a family of large, herbivorous mammals collectively called elephants and mammoths. These are terrestrial large mammals with a snout modified into a trunk and teeth modified into tusks. Most genera and species in the family are extinct. Only two genera, Loxodonta (African elephants) and Elephas (Asiatic elephants), are living.