Tsuki Is A Popular Baby Girl Name Across Mount Rausu, Mount Iwate, Mount Tanigawa, Mount Fuji, And Mount Unzen. Tsuki Is A Japanese Baby Girl Name For “moon” And Is Also Associated With Martial Art Techniques. If You’re A Lover And A Fighter, You Might Have Already Tried Several Tsuki Moves Throughout Your Karate Career. Whether You Want Baby To Stand Tall And Fight For Herself Or Become A Beacon For Others—or All Of The Above—the Name Tsuki Won’t Let You Down.