|“||You and I have the very same eyes, you can not win against me||”|
Ikki Niko (いっき にこ, Niko Ikki) is a supporting character of the Blue Lock (Manga).
When first arriving at Blue Lock, he was a member of Team Y during the First Selection and he was determined on surviving Blue Lock with the skills he already had but after losing to Yoichi Isagi in the First Selection, he decided to stop being afraid and change to get better so he could survive Blue Lock.
Niko has a lean body with long black hair that covers both his eyes. Niko is of average build and size so he does not appear to be a very strong player. His hair covers his eyes but he is still able to see through it enough to play high level football.
At Blue Lock, Niko wears the standard-issued body suit (black with gray stripes) and tracksuit. During the First Selection, he wore Team Y’s blue #7 jersey and during Second Selection, wore Team White's #63 jersey. During the Third Selection he wore Team B's white #63 jersey. During the match against the Japan U-20, Niko dons an official Blue Lock player uniform with the #3, that looks very similar to the ones seen in the first cover spread minus the Japan flag.
Centre-back: also known as a central defender, their role is to stop players such as the opposing striker from shooting on the goal. It is common to see two centre-backs play on the pitch. They can either cover a specific portion of the field or cover a specific player.
Expert Spatial Awareness:
- The name Niko means "Daylight" (二子).
- Niko's surname Ikki means "one" (一) (ichi) and "wave" (揮) (ki).
- He doesn't like washing his forehead in front of people 
- He is the left-sided centerback for the Blue Lock Eleven.