UNC and Duke tie for 17
26 USC Trojans Mens Track and Field
LSU Men and Women have a combined 64 national championships as of spring 2007. That is, by far, the most by an SEC school.
UCLA has won the most NCAA mens basketball championships; the last undefeated national mens champions were Indiana, 1976
canutillo high 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.