Zygoballus iridescens is a species of jumping spider which occurs in the United States.

[2] It is known only from a single female specimen collected in Franconia, New Hampshire by Annie Trumbull Slosson.

The region of the epigynum is red-brown, and is semicircular in outline; showing four pale spots, two in front close together, and one in each posterior corner.

Arachnologists George and Elizabeth Peckham commented on the specimen in their 1909 work Revision of the Attidae of North America: "Iridescens B., which Mr. Banks has kindly lent us for examination, is founded upon an example which is not quite mature, and we think it may be Bettini.

The type specimen is housed at the Museum of Comparative Zoology, Harvard University.