Gigagryllus is a genus of giant field cricket in the subfamily Gryllinae.

Its type and only species is Gigagryllus omayrae.

The species name, omayrae, is dedicated to Omayra Sánchez, a victim of the Armero tragedy, which occurred in the department of Tolima.

[1] Gigagryllus omayrae is found in the middle Magdalena region of Colombia, particularly in the department of Tolima.

This article about a member of the insect family Gryllidae is a stub.