Isidore Ngei Ko Lat was a Catholic catechist from Myanmar who lived from 1918 to 1950. Born in Kayin State to peasant parents, he was raised by his aunt and uncle following their deaths. After studying at the Saint Teresa minor seminary, he served as a teacher during the Second World War. Later, he partnered with the missionary Mario Vergara to conduct religious work in Kayah State, eventually becoming a martyr when he was killed by local rebels.