Thomas Godfrey (December 1704 – December 1749) was an optician and inventor in the American colonies, who around 1730 invented the octant. At approximately the same time an Englishman, John Hadley, also invented the octant independently. Godfrey was born on his family's farm in Bristol Township, near Germantown, Philadelphia, Pennsylvania. Godfrey's son, also Thomas Godfrey, died at only 26, but had already published several popular works, including The Prince of Parthia, a play that remains well known to this day.