The following sports are offered at Parnassus:
- Cross Country (3L-4R) – Fall Season
- Boys Basketball (3L-4R) – Winter Season
- Girls Basketball (3L-4R) – Winter Season
- Nordic Skiing (3L-4R) – Winter Season
- Track & Field (3L-4R) – Spring Season
Parnassus has an athletic co-op with Brooklyn Center High School for the following sports:
- Fall – Football, Boys & Girls Soccer, Girls Tennis, Girls Volleyball
- Winter – Dance, Wrestling
- Spring – Baseball, Softball, Boys Tennis, Boys Volleyball
During the spring season, Parnassus also has athletic co-ops with:
- Golf (3L-4R) Co-op with Maranatha
- Boys Lacrosse (3L-4R) Co-op with Park Center/Osseo