Lazar Poptraykov (Bulgarian: ????? ??????????) (10 April 1878–October 1903) was a Bulgarian revolutionary (komitadji) and poet.
He was one of the leaders of the Internal Macedonian-Adrianople Revolutionary Organization (IMARO) in the region of Kastoria (Kostur) during the Ilinden Uprising.
Despite his Bulgarian identification, per post-WWII Macedonian historiography he was an ethnic Macedonian.