| Jan Olis | |
| Birth Place: | Gorinchem, Netherlands |
| Death Place: | Heusden, Netherlands |
| Nationality: | Dutch |
| Occupation: | Painter |
Jan Olis (1610 - 1676) was a Dutch Golden Age painter.
Olis was born in Gorinchem. According to the RKD in 1632, he became a member of the Dordrecht Guild of St. Luke.[1] In 1637, he got married, and during the years 1632–43, he is registered both as a wine seller and a teacher in the guild.[1] He is possibly the same person as Jan Olofsen who became a member of the Confrerie Pictura in The Hague in 1643.[1] He then moved to Heusden in 1651 where he had various positions in the council until he became a mayor there in 1657 and was tax collector in 1670.[1] He is known for farm scenes, genre works, and merry companies and influenced the painter Mathieu Lenain.[1] He died in Heusden.