Hemisaga is a genus of katydids in the family Tettigoniidae. It contains the following species:

• Hemisaga albilinea Rentz, 1993
• Hemisaga allirra Rentz, 1993
• Hemisaga baileyi Rentz, 1993
• Hemisaga denticulata (White, 1841)
• Hemisaga irregularis (Redtenbacher, 1891)
• Hemisaga lanceolata Ander, 1957
• Hemisaga lucifer Rentz, 1993
• Hemisaga lunodonta Rentz, 1993
• Hemisaga mullaya Rentz, 1993
• Hemisaga pericalles Rentz, 1993
• Hemisaga saussurei Brancsik, 1895
• Hemisaga undulata Rentz, 1993
• Hemisaga venator Rentz, 1993
• Hemisaga vepreculae Rentz, 1993

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