The orange bluet (Enallagma signatum) is a species of damselfly in the family Coenagrionidae.

The orange bluet may perch on rock, foliage, water lilies, other emergent vegetation, and on the bare ground along the shore with wings together.

General vesper bluets are similar, but the black humeral stripe is either lacking or narrowly reduced in that species.

It also looks similar to the Florida bluet which is orange in color, but males have shorter and stubbier cerci.

After mating, the pairs will begin laying eggs in floating vegetation or debris, with the male often accompanying his partner underwater.