Piet Buter (Dutch pronunciation: [pid ˈbytər]; born 6 June 1949) is a soccer coach from Haarlem, Netherlands.

[1] Piet Buter was born in Haarlem, Netherlands, and in his younger years played amateur soccer for VV Schoten.

Buter began his coaching career with SV Cronje, and subsequently had spells at VV Noordwijk and RCH.

In 2009, Buter left Utrecht and took the job of assistant coach with the Iran national football team.

Buter had been involved with the company and since he was technical director at Utrecht at the time, there were accusations of a conflict of interest.