Felben-Wellhausen is a municipality in the district of Frauenfeld in the canton of Thurgau in Switzerland.

[3] In 1178 Alt St. Johann monastery in the Toggenburg region became the landlord of the village.

From the Late Middle Ages until 1798, the courts for the village were held in the city of Frauenfeld.

Prior to the Protestant Reformation Felben, which probably had a chapel starting in the 9th century, belonged to the parish of Pfyn.

Until the 19th century most of the surrounding fields were planted with grain in a three-field system.

Several drainage and amelioration projects (1909, 1920–25 and 1969–83) opened up additional land for agriculture.

By 1900, several other industries had moved into Felben, including embroidery, a brick factory and sand pit work.

[3] Felben-Wellhausen has an area, as of 2009[update], of 7.38 square kilometers (2.85 sq mi).

Until the Thur Correction project of 1880, the town was routinely flooded by the river.

Most of the population (as of 2000[update]) speaks German (89.2%), with Italian being second most common ( 2.5%) and Serbo-Croatian being third ( 2.0%).

[7] The age distribution, as of 2009[update], in Felben-Wellhausen is; 246 children or 10.3% of the population are between 0 and 9 years old and 323 teenagers or 13.5% are between 10 and 19.

In the federal election, a total of 667 votes were cast, and the voter turnout was 43.5%.

[8] From the 2000 census[update], 576 or 26.9% were Roman Catholic, while 1,058 or 49.3% belonged to the Swiss Reformed Church.

[8][18] Felben-Wellhausen railway station is a stop of the Zürich S-Bahn on services S24 and S30.