Like any other indigenous Dayak groups, the Selako people embraced the Kaharingan religion, but many Selakos diaspora tend to have Christians (mostly adhered to West Kalimantan Christian Church, Bornean Evangelicals, and Anglicans) and Roman Catholics faiths after the mass conversion by missionaries in the 19th century.
The Selako people, similar to other indigenous Dayak groups, followed the Kaharingan religion. Nevertheless, many Selako migrants have since adopted Christianity (mainly affiliated with West Kalimantan Christian Church, Bornean Evangelicals, and Anglicans) and Roman Catholicism after a large-scale conversion by missionaries in the 19th century.