Nikkor is the brand of lenses produced by Nikon Corporation, including camera lenses for the Nikon F-mount.

The Nikkor brand was introduced by Nippon Kogaku K.K. (Nikon's original corporate name) in 1932. Nikon originally reserved the Nikkor designation for its highest-quality imaging optics, but in recent history almost all Nikon lenses are so branded.

Notable Nikkor branded optics have included:

• F-mount lenses for 35mm SLR and DSLR photography.
• Lenses for Bronica and Plaubel Makina medium format cameras.
• Lenses for Nikon S-series and Leica rangefinder cameras
• Amphibious lenses for Nikonos underwater cameras
• Lenses for large format photography.
• EL-Nikkor photographic enlarger lenses.
• The lens of Canon's first or second camera, the "Hanza Canon."
• Microscope objectives.
• Industrial lenses, including lenses in support of the Japanese war effort during World War II.

Currently the most actively developed and marketed Nikkor lenses are Nikon's F-mount photographic lenses. These lenses are designed to cover the 24x36mm area of 135 film and the Nikon FX format, or in the case of "DX" designated lenses, the 16x24mm area of the Nikon DX format.

Lenses for Nikon F-mount

Nikkors constitute the majority of lenses available for the Nikon F-mount, which is itself the largest system of interchangeable flange-mount photographic lenses in history. These lenses are designed for the 135 (35mm) and Nikon DX formats. Over 400 different F-mount Nikkor models are known to exist.

• See Nikon F-mount → Nikkor

Lenses dedicated for other cameras

Note: The letter U, B, T, Q, P, H, S, O, N, or D immediately after the "Nikkor" name designates the number of elements in the design  Uns (1), Bini (2), Tres (3), Quatour (4), Pente (5), Hex (6), Septem (7), Octo (8), Novem (9), or Decem (10).

Nikon "S" rangefinder

• 21mm 4 Nikkor-O
• 25mm W-4.0 Nikkor
• 28mm 3.5 Nikkor

• 35mm 1.8 W-Nikkor
• 35mm 2.5 W-Nikkor
• 35mm 3.5 W-Nikkor
• 50mm 1.1 Nikkor-N
• 50mm 1.4 Nikkor-S
• 50mm 2.0 Nikkor-H
• 50mm 3.5 Micro-Nikkor (close focus)
• 85mm 1.5 Nikkor-S
• 85mm 2.0 Nikkor-P
• 105mm 2.5 Nikkor-P
• 105mm 4.0 Nikkor-P
• 135mm 3.5 Nikkor-Q
• 135mm 4.0 Nikkor
• 180mm 2.5 Nikkor
• 250mm 4 Nikkor-Q
• 1000mm 6.3 Reflex-Nikkor