David Anthony Lock KC (born 2 May 1960) is a barrister and former Labour Party politician in the United Kingdom.
He became the first Labour MP in the Wyre Forest for many years but lost his seat when he supported changes to the accident and emergency services at Kidderminster General Hospital in the face of public opposition.
He was then involved in a series of high-profile legal cases concerning healthcare and in 2008 returned to practice at the Bar.
He is Chair of the West Midlands Labour Finance and Industry Group and is a qualified paraglider pilot.
He was made a KC in 2011 and was the Birmingham Law Society's choice of "Barrister of the Year" in April 2011.