Tetracis barnesii

{{Short description|Species of moth}}

{{Speciesbox

| image =

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| taxon = Tetracis barnesii

| authority = (Hulst, 1896)

| synonyms =

• Gonodontis barnesii Hulst, 1896
• Synaxis barnesi McDunnough, 1938

}}

Tetracis barnesii is a moth of the family Geometridae. It is found from the high-desert riparian canyons in Colorado and Utah to the dry coniferous forest in Oregon on altitudes between 1,555 and 1,905 meters.

The length of the forewings 19–23 mm. Adults are on wing from early September to late October.