Matthew "Meffy" Koloamatangi (born June 24, 1995) is an American former professional football defensive end.

While at Hawaii, he was named an honorable mention All-Mountain West twice and compiled 80 tackles and 7 sacks over three years of playing time.

[3] After going undrafted in 2018, Koloamatangi received an invitation to participate in the Oakland Raiders rookie camp but was not signed.

[4] He was added to the San Diego Fleet roster of the Alliance of American Football in 2019, compiling 7.5 tackles and 0.5 sacks before the league folded operations later that year.

[9] On March 7, 2022, Koloamatangi signed with the Vegas Knight Hawks of the Indoor Football League (IFL).