Sir Collingwood Schreiber, KCMG (December 14, 1831 – March 23, 1918) was an English Canadian surveyor, engineer and civil servant.

His mother's father was rear admiral Joseph Bingham, and her grandfather was vice-admiral Sir William Parker, 1st Baronet, of Harburn.

He arranged financing and conducted repeated inspection tours, often with Sir William Cornelius Van Horne, who was appointed CPR president in 1881.

In 1905 he took a position as consulting engineer on the western or Grand Trunk Pacific division of the National Transcontinental Railway".

He found a job for prime minister Sir John A. Macdonald's nephew, but flatly refused to promote people with influence unless their performance merited it.