James Nathaniel Halpin (October 4, 1863 – January 4, 1893), a native of England, was a Major League Baseball shortstop/third baseman.

He played for the Worcester Ruby Legs (1882), Washington Nationals (1884 Union Association), and Detroit Wolverines (1885).

Halpin made his major league debut in a home game against the Buffalo Bisons at Worcester Driving Park Grounds.

Halpin played just one more game for Worcester before returning to the big leagues two years later.

He was a slightly below-average fielder for his era, making 51 errors in 263 total chances (.806).