Herman d'Oultromont (April 2, 1882 in Brussels – February 17, 1943 in Woluwe-Saint-Lambert) was a Belgian equestrian who took part in the 1920 Olympic Games in Antwerp.
Oultromont won an Olympic silver medal at the 1920 Summer Olympics in Antwerp.
He was part of the Belgian team who came in second place in the team competition in show jumping.