Arthur (Tuur) Elzinga (12 December 1969) is a Dutch politician and trade unionist.

Since 2018, he is a vice-president of the trade union confederation FNV with responsibilities for pensions and international affairs.

[1] In 2007 Elzinga was a co-founder of Tax Justice Netherlands (the Dutch branch of ATTAC).

He was selected to be sixth on the Socialist Party's ticket for the Senate, winning election in June 2007.

[2] From 2017, Elzinga has served as a Vice-President of FNV and acts as the Federation's lead negotiator with the government and employers on pensions.