Alexander Louis London (August 31, 1913 – March 19, 2008) was an American mechanical engineer and professor of mechanical engineering at Stanford University.[1] [2] [3] [4] London was elected to the National Academy of Engineering "for contributions to the theory and applications of compact heat exchangers, especially in the gas turbine field".[1] The National Academy of Engineering called London "one of the world's best known experts in heat transfer equipment design, performance and analysis."[1] The Stanford University called him "engineering expert on heat transfer".[4] London received the R. Tom Sawyer Award by the Gas Turbine Division of the American Society of Mechanical Engineers,[3] The James Harry Potter Gold Medal,[3] and the Max Jakob Memorial Award.[3]