The word Sonata can mean:

• Sonata (music), a musical term for a piece played as opposed to sung
• Sonata form, a way of organizing the composition of a work of music.

The name Sonata can refer to:

• Sonata, the trade name for Zaleplon, a sedative also sold as Starnoc
• The Sonata I and Sonata II, computer cases manufactured by Antec
• Hunter Sonata, a small racing and cruising yacht built by British boat builder Hunter Boats
• Hyundai Sonata, a sedan automobile built by Hyundai Motor Company
• Sonata Arctica, a Finnish power metal band
• Sonata (software), a music player client for the Music Player Daemon (MPD)
• Sonata Watches, India's largest selling brand, made by Titan Industries
• Winter Sonata, South Korean television drama