[jmjohnson36]

Yes there were several awarded, most posthumously...but to answer your question:

ANTRIM, RICHARD NOTT, Commander, U.S. Navy., Makassar, Celebes, Netherlands East Indies, April 1942.

FLUCKEY, EUGENE BENNETT, Commander, U.S. Navy, Commanding USS Barb., Along coast of China, 19 December 1944 to 15 February 1945.

HALL, WILLIAM E., Lieutenant, Junior Grade, U.S. Naval Reserve., Coral Sea, 7 and 8 May 1942. Assigned to USS Pike, not aboard.

O'KANE, RICHARD HETHERINGTON, Commander, U.S. Navy, commanding USS Tang., Vicinity Philippine Islands, 23 and 24 October 1944

Originally Posted by vindex

Did any sub commander -- or anyone on a sub for that matter -- ever win a Congressional Medal of Honor? I'm curious to know.

[update]
Oops, I answered my own question:
http://en.wikipedia.org/wiki/John_P._Cromwell
http://en.wikipedia.org/wiki/Eugene_B._Fluckey
http://en.wikipedia.org/wiki/Howard_W._Gilmore
http://en.wikipedia.org/wiki/Richard_O%27Kane
http://en.wikipedia.org/wiki/Lawson_P._Ramage
http://en.wikipedia.org/wiki/George_L._Street_III

In fact, I was surprised to learn that a very large percentage of the Navy personnel who won CMH's during WWII were submarine commanders (there were only a handful of Navy CMH's at all, compared to quite an extensive list for the Army -- many of the non-sub ones were posthumously earned at Pearl Harbor).

So it is actually reasonable for a truly outstanding sub commander to aspire to this goal.