Hugh Louis Lamb (October 6, 1890 – December 8, 1959) was an American Catholic prelate who served as the first Bishop of Greensburg from 1951 until his death in 1959.

[2] Lamb's early assignments included parishes in Philadelphia and Coatesville, Pennsylvania, and he served a professor at St. Charles Seminary through 1921.

[2] He received his episcopal consecration on March 19, 1936, from Cardinal Dougherty, with Bishops Gerald O'Hara and George L. Leech serving as co-consecrators.

[1] On May 28, 1951, Pope Pius XII named him the first Bishop of the newly erected Diocese of Greensburg in Western Pennsylvania.

[1] Lamb was also instrumental in the founding of Jeannette District Memorial Hospital in Greensburg, donating over $300,000 for its construction and securing the Sisters of Charity of Seton Hill to staff it.