Nawa'akoa Lisiate Foti Analeseanoa "Koa" Misi (born January 17, 1987) is an American former professional football player who was a linebacker for the Miami Dolphins of the National Football League (NFL).

[2] On September 19, 2010, Misi's second career game in the NFL, he recovered a Brett Favre fumble in the end zone for a touchdown giving the Dolphins a 14–0 lead.

On September 7, 2013, Misi signed a four-year, $17 million contract extension with the Dolphins.

[4] Due to a back injury, Misi was placed on the team's injured reserve on December 22, 2015.

[6] On July 25, 2017, the Dolphins placed Misi on injured reserve with a neck injury.