Johan Fredrik Feyer (16 July 1821 – 26 June 1880) was a Norwegian industrial pioneer and factory owner.
He was born in Christiania (now Oslo), Norway.
He was the son of Christian Feyer (1793-1879) and Helene Othilie Falck (1792-1865).
His father was a state official and court administrator (sorenskriver).
While he was young, his family moved to Egersund in Rogaland.
He was educated by the parish priest in the parish of HÃ¥ with further education in Christiania.
During the 1840s, he traveled to Great Britain to study stoneware production.
In 1846 he returned to Egersund where the following year he established a pottery plant, Egersund Potteria, which became Norway's leading stoneware manufacturer during the 1850s.From 1865 the factory was known as Egersunds Fayancefabrik, producing the fine tin-glazed pottery on earthenware known as faience.
By 1876, the factory encountered a financial crisis and was administered by the courts.
The estate was not insolvent and the factory continued.
Feyer was offered a position which he declined.
He subsequently left Egersund and settled in Christiania.