Solid Air may refer to:

• Solid Air, a 1973 folk-jazz album by British singer-songwriter and guitarist John Martyn
• Solid Air B.V., a Dutch airline that flies Canadair CRJ-100 Series and Dornier Do-328 aircraft
• Solid Air UL-Bau Franz, a German aircraft manufacturer

• Platonia (plant)
• Platonica
• Platonic Academy (discussion group)
• Platonic Academy (Florence)
• Platonic body
• Platonic dialogues
• Platonic Dialogues
• Platonic (disambiguation)
• Platonic friends
• Platonic lover
• Platonic lovers
• Platonic polyhedron
• Platonic solid fractal
• Platonic tradition
• Platonieae
• Platonism in Philosophy and Poetry
• Platonism in the Renaissance
• Platonism (mathematics)
• Platonism Since the Enlightenment
• Platon Ivanovich Ivanov
• Platon Ivanovits Ivanov
• Platon Kerzhentsev
• Platon Krivoschekov
• Platon Krivoschyokov
• Platon Krivoshchekov