The Texas Longhorns
soccer
UCLA
Stanford with 540
Depends on which sport or sports you are asking about.
In the southeastern conference which team has the most conference championships in all sports combined
MIT?
UCLA
LSU Men and Women have a combined 64 national championships as of spring 2007. That is, by far, the most by an SEC school.
The New York Yankees have the most championships in any sports history. They have a total of 26 championships and have appeared in the championship 39 times.
Steelers
Texas