Your question is in the category of John F. Kennedy. But in case you still weren't sure, it stands for John Fitzgerald Kennedy.
j.f.k. are the initials of jfk
president Jefferson bobmobel
JFK are the initials for John Fitzgerald Kennedy who was a president of the USA.
FDR - Franklin Delano Roosevelt, JFK - John Francis Kennedy and LBJ - Lindon Baines Johnson
Andrew Jackson
LBJ
None. The only president close to those initials is JFK- John Fitzgerald Kennedy
JFK
jfk and Lyndon Johnson
JFK.
The initials of Ronald Reagan, who is considered the 40th U. S. President, are R.W.R.
JFK went to Choate