English: Neptis hylas, sometimes known as the Common Sailer, is a species of nymphalid butterfly found in South Asia and Southeast Asia. It has a characteristic stiff gliding flight achieved by short and shallow wingbeats just above the horizontal.

The Sailors, or Gliders as they are sometimes called, are all members of the genus Neptis - a large and confusing group of butterflies found across much of the world, excluding the Americas. They are noted for their characteristic sailing flight, and their shared theme of white spots and bars on a black background.

This species is found in forested habitats at elevations between sea level and about 800 metres. It is found in both primary and secondary forest, frequenting sunlit glades and forest edge habitats.