John W. Hartmann (born September 22, 1967) is an American politician who served in the New Jersey General Assembly from the 15th Legislative District from 1992 to 1994.
[1] Born in Toronto, Hartmann attended Princeton Day School and graduated from Georgetown University in 1989 with a Bachelor's degree, where he majored in history and was an honors student.
[2] He received his Juris Doctor from Seton Hall University School of Law in 1993.
In the 1991 general election for the Assembly, incumbent assemblyman Gerard Naples lost his seat coming in fourth place behind fellow incumbent Democrat John S. Watson and Hartmann.
Hartmann won along fellow Republican Dick LaRossa, who would serve in the New Jersey Senate.