Daniel McLachlin (July 17, 1808 – February 6, 1872) was a businessman and political figure in Canada West.

[1] They had eight children together; Jessie, William, Harriet, Hugh, John, Daniel, Eric, and Claude.

[1] Daniel entered the timber trade in the Ottawa Valley by November 1834 with his brother William.

[1] In 1851, he relocated his timber business to the nearly deserted village of Arnprior, using the power of the Madawaska River to operate his mills.

He had bridges built, helped to bring people in, and took a leading role in promoting public improvements.

By 1865, he was running the lumber business with his sons (Hugh, John, and Daniel) under the name "McLachlin Brothers.