Oberkirch is a municipality in the district of Sursee in the canton of Lucerne in Switzerland.

Oberkirch is first mentioned in 1036 as Ecclesia superior though this comes from a 14th Century copy of the earlier document.

Of the rest of the land, 12.1% is settled (buildings or roads) and the remainder (0.3%) is non-productive (rivers, glaciers or mountains).

Of the agricultural land, 64.98% is used for farming or pastures, while 9.11% is used for orchards or vine crops.

Of the settled areas, 6.37% is covered with buildings, 0.99% is industrial, 0.44% is classed as special developments, 0.66% is parks or greenbelts and 3.62% is transportation infrastructure.

It consists of the village of Oberkirch and the hamlets of Dogelzwil, Oberhof, Unterhof and Zellhüsli.

In the 2000 census[update] the religious membership of Oberkirch was; 2,186 (82.1%) were Roman Catholic, and 223 (8.4%) were Protestant, with an additional 60 (2.25%) that were of some other Christian faith.