Patrick 'Pat' Farrah is an American businessperson and former retail executive best known as a co-founder of The Home Depot, one of the largest home improvement retailers in the world. He served as an early leader and one of the original team members at the company, joining the team that launched the first two stores in Atlanta, Georgia, on June 22, 1979. Farrah played a pivotal role in the company's early development, contributing to its foundational operations, store design, and overall vision of the warehouse-style retail model that revolutionized the home improvement industry. His expertise in retail operations helped establish The Home Depot's customer-centric approach, emphasizing low prices, wide selection, and knowledgeable staff.

As an early leader at The Home Depot, Farrah held key executive positions during the company's explosive growth phase in the 1980s and 1990s, contributing to its expansion from a regional chain to a national powerhouse. Under his influence, the company went public in 1981 and achieved remarkable success, with Farrah involved in strategic decisions that solidified its market dominance. After several decades with the company, Farrah retired from his executive roles, leaving a lasting legacy in American retail. His work with The Home Depot not only built a business empire but also influenced modern retail practices, particularly in the do-it-yourself sector.

Farrah's career highlights his impact on entrepreneurship and innovation in the retail space, though details of his personal life and post-retirement activities remain relatively private. He is recognized among the original team members who turned a bold idea into a multi-billion-dollar enterprise, and his story is often cited in accounts of The Home Depot's founding.