Sir Mackenzie Dalzell Edwin Stewart Chalmers KCB CSI (7 February 1847 – 22 December 1927) was a British judge and civil servant.
He was Parliamentary Counsel to the Treasury, a judge of the county courts and a Law Member of the Viceroy's Council in India.
Chalmers also served as Permanent Under-Secretary of State at the Home Office from 1903 to 1908.
The Bill was referred to a Select committee consisting of Lord Herschell, the Earl of Halsbury, Baron Bramwell and Lord Watson.
Sir Mackenzie is also known for drafting the Marine Insurance Act 1906, which is still in force.