Wiehl (German pronunciation: [viːl] ⓘ) is a municipality in the Oberbergischer Kreis, in North Rhine-Westphalia, Germany.

Wiehl was eventually allocated in the 1604 Treaty of Siegburg to the Barony of Homburg and was subordinated with it to the House of Sayn-Wittgenstein.

In 1815, the Congress of Vienna assigned the little Homburg territory, which practically only consisted of the municipalities of Wiehl and Nümbrecht, to Prussia.

In the municipal reorganisation in 1969, it was combined with Bielstein and Drabenderhöhe and, in 1971, 840 years after its first record, it was granted town rights.

Since that time it has grown steadily, partly through the arrival of immigrants and through policies encouraging the growth of industry.