Niks Matvejevs (13 February 1958 - 27 April 2014) was a Latvian composer, musician and singer from Bauska, Latvia. He was a vocalist of a rock band Sīpoli.

He has participated in important Latvian music festivals, and played a leading roles in many rock operas. He has worked with composers Mārtiņš Brauns and Zigmārs Liepiņš. As a music composer, arranger and performer participated in many recordings. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.