Ken-Marti Vaher (born 5 September 1974) is a leading member of the Estonian Pro Patria and Res Publica Union party.

Vaher, born in Tallinn on 5 September 1974, was educated at the University of Tartu, where he received a bachelor's degree in law.

A career politician and civil servant, Vaher served as Director of the State Audit Office as well as a member of the Tallinn City Council, before being appointed to the Minister of Justice position in the Juhan Parts government.

The plan, as it was proposed, would have established a quota system of how many civil servants had to be prosecuted every year, it was set on a per county basis.

[2] In the 2015 parliamentary election, Vaher was re-elected to the parliament with 2,313 individual votes.