Ufhusen is a municipality in the district of Willisau in the canton of Lucerne in Switzerland.

Of the agricultural land, 71.35% is used for farming or pastures, while 2.2% is used for orchards or vine crops.

Of the settled areas, 1.71% is covered with buildings, 0.08% is industrial, 2.2% is classed as special developments, 0.16% is parks or greenbelts and 1.47% is transportation infrastructure.

Most of the population (as of 2000[update]) speaks German (98.6%), with French being second most common ( 0.5%) and Albanian being third ( 0.5%).

The age distribution, as of 2008[update], in Ufhusen is; 239 people or 28% of the population is 0–19 years old.

In the 2000 census[update] the religious membership of Ufhusen was as follows: 573 (72.6%) were Roman Catholic, 169 (21.4%) were Protestant, with an additional 1 (0.13%) that were of some other Christian faith.