In addition, Niko is a contracted form of the name Nikolaus (German) in the Finnish, German, and Slavic languages as well as a variant of the name Nicholas (English and French) in the Finnish, German, and Slavic languages.
The name Nieko (English) is a variant of Niko. Variant forms share the origin and meaning of Niko.
Niko is rather popular as a baby boy name. The name's popularity has been growing since the 2000s. Its usage peaked modestly in 2012 with 0.017% of baby boys being named Niko. It was #690 in rank then. In 2012, among the family of boy names directly related to Niko, Nicholas was the most regularly used. It was 23 times more widely used than Niko in that year.
† English pronunciation for Niko: N as in "knee (N.IY)" ; IY as in "eat (IY.T)" ; K as in "key (K.IY)" ; OW as in "oak (OW.K)"