Lucania goodei, the bluefin killifish, is a small species of fish in the topminnow family Fundulidae.

It is native to the southeastern United States, but has been introduced to California, Texas and North Carolina.

It is found in the Chipola River drainage of southeastern Alabama, and sporadically along the Atlantic coast up to central South Carolina.

It is often found in spring habitats, and can also survive in moderate salinity, as well as low oxygen environments where it uses its upturned mouth to gulp air at the surface.

[5] The specific name honors the American ichthyologist George Brown Goode (1851–1896) who was the collector of the type.