Helenius

Helenius is both a surname and a given name. Notable people with the name include:

People with the surname

 * Ari Helenius (born 1944), Finnish professor of biochemistry
 * Jani-Petteri Helenius (born 1990), Finnish professional ice hockey player
 * Juhani Helenius (born 1933), Finnish sprint canoeist
 * Nicklas Helenius Jensen (born 1991), Danish professional football forward
 * Riku Helenius (born 1988), ice hockey goaltender
 * Robert Helenius (born 1984), Finnish professional boxer
 * Sami Helenius (born 1974), ice hockey defenceman

People with the given name

 * Helenius Acron, Roman commentator and grammarian, probably of the 5th century
 * Helenius de Cock (born 1835), instructor at the Theological School, Kampen, Overijssel, Netherlands