Emery Nziyunvira (amụrụ na 19 Machị 1984) bụ onye Burundi bụbu onye na-egwu mmiri, onye ọkachamara n'egwuregwu freestyle. Na 2004 Summer Olympics na Athens, Nziyunvira bụ onye a họpụtara site na Burundi National Olympic Committee () iji buru ọkọlọtọ mba ahụ na emume mmeghe. O tozuru oke n'asọmpi 100m freestyle nke ụmụnwoke
, site n'inweta ebe Universality site na FINA na oge ntinye nke 1:09.84. Ọ gbara ndị ọzọ na-egwu mmiri isii na okpomọkụ nke mbụ, gụnyere Mumtaz Ahmed dị afọ iri atọ na anọ nke Pakistan. O mechiri egwuregwu ahụ wee nọrọ n'ọnọdụ ikpeazụ na oge kachasị mma nke 1:09.40, kpọmkwem 43 sekọnd karịa oge ndekọ akụkọ ihe mere eme nke 1: 52.72, nke Eric Moussambani nke Equatorial Guinea nwere na 2000. Nziyunvira enweghị ike ịga n'ihu na ọkara ikpeazu, ebe ọ bụ na ọ nọ n'ọnọdụ iri isii na itoolu n'ime ndị na-egwu mmiri iri asaa na otu na nke mbụ.