Who chose the code name "Operation Overlord" for the invasion of Europe in WWII? I did some searching online but could not find any information about the origin of the name. I just need to know who chose it... the meaning is irrelevant. (Although I'm fairly sure it doesn't have any meaning behind it since code names were often chosen completely at random.)
Thanks!

'In the Second World War, code names common to the Allies referring to nations, cities, geographical features, military units, military operations, diplomatic meetings, places, and individual persons were agreed upon adapting pre-war naming procedures in use by the governments concerned. In the British case code names were administered and controlled by ISSB (The Inter-Services Security Board) staffed by the War Office with the word list generated and randomised by GC&CS (later GCHQ). This procedure was coordinated with the USA when America entered the war. Random lists of code names were issued to users in alphabetical blocks of ten words and were selected as required. Code words became available for re-use after six months and unused allocations could be re-assigned at discretion and according to need. Judicious selection from the available allocation could result in clever meanings and result in an aptronym or backronym, although policy was to select words that had no obviously deducible connection with what they were supposed to be concealing.' wikipedia

I always assumed that "Overlord" was chosen because because the Operation had as part of its make-up Operation Neptune and Juno beach.

I think Sarah wants to know who chose the name. I do not know, and cannot find a reference, but assume that General Eisenhower had final authority to accept or reject it.

Actually, the answer is Winston Churchill.
Have a look at, "The Art of Naming Operations" by Gregory C. Sieminski, published in "Parameters", Autumn 1995, pp. 81-98:

Although the words listed in the British and American code indexes were randomly chosen, the names of significant operations were thoughtfully selected from the lists, at least those Winston Churchill had anything to do with. Churchill was fascinated with code names and personally selected them for all major operations.[20] He had clear ideas about what constituted appropriate names. After coming across several that he considered inappropriate, he went so far as to instruct an aide to submit all future code names to him for approval; he dropped his demand when he learned the magnitude of the task,[21] but he did take the precaution of writing down some principles to guide his subordinates:
[1.] Operations in which large numbers of men may lose their lives ought not to be described by code words which imply a boastful or overconfident sentiment,. . . or, conversely, which are calculated to invest the plan with an air of despondency. . . . They ought not to be names of a frivolous character. . . . They should not be ordinary words often used in other connections. . . . Names of living people--Ministers and Commanders--should be avoided. . . .
2. After all, the world is wide, and intelligent thought will readily supply an unlimited number of well-sounding names which do not suggest the character of the operation or disparage it in any way and do not enable some widow or mother to say that her son was killed in an operation called "Bunnyhug" or "Ballyhoo."[22]
Borrowing a page from the Germans of World War I, whose code-naming practices he knew well from writing his four-volume history of that war,[23] Churchill saw the names of culturally significant figures as useful sources of operational code words:

3. Proper names are good in this field. The heroes of antiquity, figures from Greek and Roman mythology, the constellations and stars, famous racehorses, names of British and American war heroes, could be used, provided they fall within the rules above.[24]

Churchill's hand also is evident in the naming of many combined US-British operations, including the American-led invasion of Normandy. The plan for the 1944 invasion was originally Roundhammer, a combination of the code names for invasions planned for previous years, Sledgehammer (1942) and Roundup (1943).[27] While Churchill's personal response to the name Roundhammer is not recorded, the British official history of the war calls the name a "revolting neologism."[28] Whether this strong reaction was shared by Churchill or not, he changed the name to Overlord,[29] deservedly the best-known operational code name to emerge from World War II.[30] The name suggests, as David Kahn has noted, "a sense of majesty and patriarchal vengeance and irresistible power."[31] Whether or not Churchill violated his own advice about avoiding names which imply overconfidence, the name Overlord may well have strengthened the resolve of those who planned the assault on fortress Europe

Global Security

Thanks guys!!!