Gnathoenia is a genus of longhorn beetles of the subfamily Lamiinae.
- Gnathoenia albescens <small>Breuning, 1939</small>
- Gnathoenia albomaculata <small>Quedenfeldt, 1881</small>
- Gnathoenia alboplagiata <small>Jordan, 1894</small>
- Gnathoenia bialbata <small>Fairmaire, 1891</small>
- Gnathoenia congoana <small>Belon, 1901</small>
- Gnathoenia flavovariegata <small>Breuning, 1935</small>
- Gnathoenia schoutedeni <small>Breuning, 1935</small>
- Gnathoenia tropica <small>(Duvivier, 1891)</small>
- Gnathoenia venerea <small>Thomson, 1858</small>
- Gnathoenia zonifera <small>Harold, 1879</small>
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