Ole Hovelsen Mustad (12 March 1810 – 24 February 1884) was a Norwegian businessperson and politician.
He was instrumental in shaping the company O. Mustad & Søn, and served one term in the Norwegian Parliament.
He was born in Vardal[1] as the son of Kari Tollefsdatter Bjørnstad (1782–1858) and her second husband Haavel Eriksen Kaas (1784–1849).
[2] In 1843 he took over the company Brusveen Spiger- og Staaltraadfabrikk, founded by his father-in-law Hans Schikkelstad in 1832.
He gradually expanded from wire and nail production to running a foundry and a sawmill.