Allyssa DeHaan, American basketball and volleyball player

Allyssa DeHaan (born June 21, 1988) is an American former collegiate basketball and volleyball player. She played for Michigan State University from 2006 to 2010.

She is ranked as the fourth all-time in career points (1,649) and rebounds (919), and is one of just three Spartans to place in the top five of both categories. She also ranks third in MSU history in made field goals (640) and made free throws (351), and seventh in free throw percentage (79.8%). DeHaan finished her career with four-year averages of 12.1 points, 6.8 rebounds, and 3.7 blocks per game. She is also ranked second all-time in Division I with 503 career blocks.

DeHaan is 6 feet 9 inches (2.06 m) tall, making her one of the tallest female basketball players in the country and the tallest player in Michigan State history.