John J. Cullen (January 1, 1845 in Mullingar, County Westmeath, Ireland – June 19, 1896 in New York City) was an American politician from New York.
The family emigrated to the United States soon after John's birth. He attended the public schools in New York City, and then became a porter in a dry-goods store.
Cullen was a member of the New York State Assembly (New York County, 18th D.) in 1882.
He was a member of the New York State Senate (9th D.) from 1884 to 1887, sitting in the 107th, 108th, 109th and 110th New York State Legislatures.
He died on June 19, 1896, at his home at 219 East 39th Street, in New York City, "after a protracted illness."