Ottava may refer to:
Ottava rima, an Italian rhyming stanza. In music, an octave. Particularly in the following musical instructions: All' ottava alta (8va, also ottava sopra), transpose music up one octave All' ottava bassa (8vb, also ottava sotta), transpose music down one octave Coll' ottava, double at the octave
See also Otava (disambiguation)