St Ffinan's Church, Llanffinan is a small 19th-century parish church built in the Romanesque revival style, in Anglesey, north Wales. There has been a church in this area, even if not on this precise location, since at least 1254, and 19th-century writers state that established the first church here in the 7th century. The church was rebuilt in 1841, reusing a 12th-century font and 18th-century memorials, as well as the cross at the eastern end of the roof.