Alfred Lawrence Pearson (December 28, 1838 – January 6, 1903) was a lawyer and Union Army general in the American Civil War.

He was admitted to the Allegheny County bar on January 14, 1862, but worked in the profession for only a few months before leaving to join the army.

When a Union brigade was pushed back by intense Confederate fire, Pearson rallied his regiment and led an attack which successfully regained the lost ground.

He was elected Allegheny County's district attorney in October 1868 and served in that post until health problems forced him to retire from the legal profession.

[2] He served in that capacity during the Great Railroad Strike of 1877, in which dozens of rioters were killed when his troops opened fire.