Andrew Egan (c.1810 – 9 October 1863) was an Irish architect and builder. Egan was a member of a noted County Galway family, Mac Aodhagáin. He is thought to have been born on Tuam's Old Road or at Cloonsheen. His father was a stonemason and he had siblings Patrick, Thomas, Bridget and Elizabeth. He began his apprenticeship in 1826, the same year as the foundation stone of Tuam's new Catholic Cathedral. By the late 1830s, Egan had progressed far enough to be entrusted with a supervisory role in the erection of the Bell Tower of the cathedral.