Can dwarf rabbits eat grass

Yes, any kind of pet rabbit can eat hay. Hay is the most important part of a pet rabbit's diet! See the related question below for more info about a healthy rabbit diet.

Timothy hay (a kind of grass hay) is best as a staple for adults, whereas alfalfa hay is good for young and pregnant rabbits. Adult rabbits can eat other varieties of grass hay, too (like brome, orchard grass, meadow grass), but legume hays (like alfalfa) aren't good for them.