Walter Barber LaBerge (March 29, 1924 – July 16, 2004) was an aerospace engineer and defense industry executive who served as United States Under Secretary of the Army from 1977 to 1980.

He was educated at Proviso Township High School in Maywood, Illinois, and the University of Notre Dame, receiving a degree in Naval Science in 1944.

After graduating, LaBerge joined the United States Navy (then in the midst of World War II) and was posted to the yard minesweeper USS YMS-165 based in Palau.

In 1977, President Jimmy Carter nominated LaBerge as United States Under Secretary of the Army and he subsequently held this office from July 27, 1977, until February 28, 1980.

He also held several academic appointments, including senior researcher at the Institute of Advanced Technology at the University of Texas at Austin; visiting professor at the Defense Systems Management College at the Defense Acquisition University in Fort Belvoir, Virginia; and visiting professor of physics at the Naval Postgraduate School in Monterey, California.