In the 2013-14 school year, there are 351 American colleges and universities classified as Division I for National Collegiate Athletic Association (NCAA) competition. 49 of the 50 states (all except Alaska) are represented. Schools that are in transition to or from Division I are listed below the main listing. This list does not include affiliate members who may play Division I in only one or two sports.
^The formal nickname for women's teams is "Razorbacks", and the university consistently refers to the women's teams as the Razorbacks or Razorback women. The terms "Lady Razorbacks" and "Lady'Backs" have been abandoned by the university.
^The Long Beach State baseball team is unofficially called "Dirtbags", and the school recognizes the nickname.
^The school is increasingly branding its athletic program as simply "Charleston". The NCAA and national sports media are inconsistent, using "Charleston" for basketball but "College of Charleston" for other sports.
^Charleston Southern's women's golf team is known as the Lady Bucs
^The women's basketball team is now the only EKU team using "Lady Colonels". All other women's teams use "Colonels".
^The women's gymnastics team is known as "Gym Dogs".
^Most of the university is in Cambridge, but some academic buildings and athletic facilities, including the football stadium, lie in Boston.
^In July 2013, ,all Hawaiʻi men's teams adopted the nickname of "Rainbow Warriors". This reversed a 2000 policy that resulted in different men's teams using "Rainbow Warriors", "Warriors", and "Rainbows". All women's teams continue to use "Rainbow Wahine".
^Although UIC is the school's preferred athletic name, national sports media generally use "Illinois-Chicago" in score listings and on first reference.
^National sports media generally use "Loyola-Chicago", "Loyola (Chicago)", or "Loyola (Illinois)" to distinguish this school from others with the Loyola name.
^While national media generally use "Massachusetts", the shortened "UMass" is in wide usage, especially in Massachusetts itself.
^National media sometimes use "Miami (Florida)" or "Miami (FL)" to distinguish it from Miami University in Ohio.
^National media usually use "Miami (Ohio)" or "Miami (OH)" to distinguish it from the University of Miami in Florida.
^National media generally use "Mississippi" in score listings and on first reference, but will frequently use "Ole Miss" on later reference. The school athletic department prefers "Ole Miss".
^The women's basketball team is known as the "Lady Griz", but all other women's teams use the "Grizzlies" nickname.
^The baseball team is nicknamed "Thoroughbreds" instead of "Racers".
^The men's basketball team is nicknamed "Runnin' Rebels", while all other teams are known as "Rebels".
^Since the 2013 demise of the Great West Conference, NJIT has been the only Division I basketball independent.
^As of November 9, 2011, North Dakota has no athletic nickname. On that day, the state's governor Jack Dalrymple signed a bill into law that allowed the school to drop its former nickname of Fighting Sioux, ending a long-standing controversy over its use. Under the law, UND cannot adopt a new nickname until January 2015.
^The Penn State women's basketball team is nicknamed "Lady Lions", but all other women's teams use "Nittany Lions".
^The school also widely uses its historic short form of "Pitt".
^In 2013, the school changed its athletic brand to "St. Francis Brooklyn" in an attempt to distinguish itself from other schools of that name, notably the fellow Northeast Conference member in Pennsylvania. National media usually use "St. Francis (New York)" instead.
^National media usually use "St. Francis (Pennsylvania)" to distinguish it from other schools of that name, notably the fellow Northeast Conference school of the same name in Brooklyn.
^Other schools in the U.S. have this name, but national media do not add a location identifier to it, since it is the only "St. John's" whose athletic teams compete in NCAA Division I.
^Although there are other schools with this name in the U.S., none of the others are members of Division I. Therefore, national media refer to it as "Saint Joseph's" (preferred usage) or "St. Joseph's", without a regional identifier, or just St. Joe's/Saint Joe's.
^Although the school prefers to use "USC Upstate", national media often use "South Carolina Upstate".
^The school accepts either "Southern California" or "USC" for athletics purposes; national news media generally use "USC".
^Historically, USC women's teams were known as the "Women of Troy". The school now accepts either "Trojans" or "Women of Troy" for use with women's teams.
^Although the school prefers to use "SIUE", national media usually use "SIU Edwardsvile".
^The formal nickname for women's teams is "Lady Volunteers". However, the school considers the use of "Lady Vols" acceptable, and the shortened form is widely popular in Tennessee and in much wider usage among national media than the longer form. Effective with the 2015–16 school year, almost all women's teams will drop "Lady" from their nicknames, with only women's basketball retaining the Lady Volunteers nickname.
^The women's basketball team is known as "Lady Raiders". All other women's teams use "Red Raiders".
^The men's basketball team is nicknamed "Runnin' Utes", and the women's gymnastics team is nicknamed "Red Rocks".
^The school's formal name is Virginia Polytechnic Institute and State University, but it uses "Virginia Tech" in all but the most formal contexts.
^The school prefers "Green Bay" for its athletic program, and accepts "GB". National sports media were slow to adopt this, generally using "Wisconsin-Green Bay", but the school's preferred usage has become generally accepted since 2011.
^The school officially uses "Milwaukee" for its athletic program, and accepts "UWM". As with Green Bay, national media were slow to accept this, preferring "Wisconsin–Milwaukee", but "Milwaukee" is now seeing wide media use.
^Began transitioning to Division I in July 2011; full membership in July 2015.
^The school has rebranded its athletic program as "Omaha". its all-sports league, The Summit League, has followed this usage since UNO became a member in 2012. UNO's ice hockey league, the National Collegiate Hockey Conference, used "Nebraska-Omaha" in the league's inaugural season in 2013–14, but now uses "Omaha". National media still use "Nebraska-Omaha".
^Began transitioning to Division I in July 2012; full membership in July 2016