Division 1

Division 1 or Division One may refer to:

Association football

 * Azadegan League, the second-tier professional football league in Iran
 * Brisbane Premier League Division 1, the second-tier professional football league in Brisbane, Queensland, Australia
 * Danish 1st Division, of the Danish football league system
 * Division 1 (Guernsey), the second-tier football league in the Channel Island Guernsey
 * Division 1 (Swedish football), now Ettan Football, the third-tier football league in Sweden
 * Football League First Division, the former top division of the English football league system
 * Hong Kong First Division League, the second-tier football league in Hong Kong
 * I liga, the second-tier football league in Poland
 * J1 League, Japan Professional Football League
 * League of Ireland First Division, the top-flight division of the Irish football league system
 * Ligue 1, the top-flight division of the football league system in France
 * The Saudi First Division League, the second-tier football league in Saudi Arabia
 * Scottish Football League First Division, the now-defunct second-tier football league in Scotland from 1975 to 2013
 * Thai Division 1 League, the second-tier football league in Thailand
 * UAE First Division League, the second-tirer football league in United Arab Emirates
 * Victorian State League Division 1, the second-tier soccer league in Victoria, Australia
 * Welsh Football League Division One, the former top division of the Welsh football league system

Other sports

 * Division 1 (bandy), the third tier of the Swedish bandy league system
 * Division 1 (Swedish women's football)
 * Division I (NJCAA)
 * Division I (US bandy), the top level bandy league in the United States
 * Division Élite, a French baseball league
 * First division (baseball), a baseball term
 * FFHG Division 1, the second tier of French men's ice hockey
 * Cyprus Basketball Division 1
 * Hockeyettan, formerly Division 1, the third tier of ice hockey in Sweden, previously the first tier from 1944 to 1975
 * LFH Division 1, the top tier of French women's team handball
 * LNH Division 1, the top tier of French men's team handball
 * NCAA Division I, the highest level of intercollegiate athletics in the U.S.
 * Women's Flat Track Derby Association Division 1, the highest level of competition in women's flat track roller derby