The nuclear magnetic resonance of Co-59 in Gd2Co7 has been measured under external fields up to 50 kOe at 4.2 K. The Co-59 hyperfine fields at the 3b, 12c, 9e and 18h sites in Gd2Co7 have been measured as 88, 68, -72 and -62 kOe, respectively. This suggests that the cobalt atoms at the 3b and 12c sites in Gd2Co7 have a large orbital moment.