Argonectes

{{Short description|Genus of fishes}}

{{Automatic_taxobox

| image = Argonectes robertsi from the Lajeado reservoir (1 of 2) (cropped).png

| image_caption = Argonectes robertsi

(scale bar = 1 cm)

| taxon = Argonectes

| authority = J. E. Böhlke & G. S. Myers, 1956

}}

Argonectes is a genus of halftooths from tropical South America.