Oblique can mean one of several things:

• Oblique case, in linguistics
• Oblique type, in typography
• Slash (punctuation) ( / )
• Superior oblique muscle, inferior oblique muscle, obliquus externus abdominis muscle, or the internal oblique, in human physiology
• An angle that is not a right angle, in geometry
• Oblique (album): an album by jazz vibraphonist Bobby Hutcherson recorded in 1967 and first released on LP in 1980