Nikon’s lens brand is known as Nikkor. This brand includes lenses designed for the f-mount. Both for the full frame (35mm) and the smaller APS-C cameras. The name is a version of the original Japanese company name which is Nippon Kogaku.
Interestingly though, the name Nikkor predates Nikon. Though all of Nikon’s modern lenses bear the Nikkor brand name, originally the idea was the exact opposite. Only the best of lenses were supposed to have the Nikkor brand name. Beyond just the f-mount and the 1-mount (which is for the mirrorless system), the Nikkor brand is also used for lenses manufactured for the Bronica and the Plaubel Makina series medium format camera systems.