Koponen
Koponen is an old Finnish Savonian surname. The name is usually considered to derive from the Orthodox saint's name Prokopios. This surname and the family bearing it may have originated as early as the 13th–14th centuries. Over the centuries, the name has appeared in several different spellings, such as: "Copoin, Copoinen" or in the feminine form "Copotar and Kopotar". The family's ancestral home is the ancient Leppävirta parish and especially the village of Varistaipale. The family divided into several branches already during the 16th century.
- Kuikka-Koponen, Finnish illusionist and magician
- Albin Koponen, Finnish sheet metal worker and politician
- Aulis Koponen, Finnish international footballer
- Niilo Koponen, American education and politician
- Timo Koponen, Finnish diplomat
- Hannu Koponen, Finnish ski-orienteering competitor
- Ari Koponen, Finnish politician
- Ari Koponen (speedway rider), Finnish speedway rider
- Noora Koponen, Finnish politician
- Ville-Matti Koponen, Finnish professional ice hockey forward
- Marlo Koponen, Finnish ice hockey defenceman
- Petteri Koponen, Finnish professional basketball player
- Suvi Koponen, Finnish fashion model
- Jere Koponen, Finnish football goalkeeper