John Williamson Pentland is a former Scottish Labour Party politician.

He was the Member of the Scottish Parliament (MSP) for the Motherwell and Wishaw constituency from 2011 to 2016.

Pentland worked as a welder with Butters Brothers, Craigneuk and then spent 28 years with British Steel Corporation at the Clyde Alloy plant.

He has been a member of the Labour Party for over 30 years, holding numerous branch and CLP positions.

He was elected to the former Motherwell District Council in 1992, and served on Planning, Leisure Services, Environmental Health, Staffing, and Policy and Resources Committees.