The Orthosiini are a mid-sized tribe of noctuid moths in the subfamily Noctuinae. The tribe was erected by Achille Guenée in 1837. It was previously included in the former subfamily Hadeninae before being moved.

Genera include:

• Achatia
• Anorthoa
• Dioszeghyana
• Egira
• Harutaeographa
• Houlberthosia
• Kisegira Hreblay & Ronkay, 1999 ^{[verification needed]}
• Lacinipolia
• Lithopolia
• Morrisonia
• Orthosia
• Panolis
• Perigonica
• Perigrapha
• Stretchia
• Xylopolia