Old Bykle Church (Norwegian: Bykle gamle kyrkje; historically known as Bykle kyrkje) is a former parish church of the Church of Norway in Bykle Municipality in Agder county, Norway. It is located in the village of village of Bykle. It is one of the churches for the Bykle parish which is part of the Otredal prosti (deanery) in the Diocese of Agder og Telemark. The white, wooden church was built in a long church design around the year 1620 using plans drawn up by an unknown architect. The church seats about 140 people on the main floor and balcony.
The interior of the church is decorated with rosemåling. The church was taken out of regular use in 2004 when the new Bykle Church was built a short distance to the southwest. Prior to 2004, this church was known as Bykle Church.