Marshallena philippinarum is a species of sea snail, a marine gastropod mollusk in the family Marshallenidae.

It shows a moderately long spire and siphonal canal.

These are crossed by spirals, of which a subsutural one is beaded, as well as those on the angle of keel ; above this latter are a few faint spirals and more numerous ones on lower part of whorls, 4 on penultimate, about 20 on the body whorl and siphonal canal, faintly beaded or crenuliferous at the points of intercrossing.

The aperture is elongately oval, with a rather blunt angle above, ending below in a rather narrow siphonal canal.

The columellar margin is slightly concave above, straight below and along the siphonal canal, with a thin layer of enamel.