League One (disambiguation)

League One or League 1 may refer to:

Association football club competitions

EFL League One, the third tier of football in England.
China League One, the second tier of football in China
K League 1, the top-tier football in South Korea
League1 British Columbia, semi-professional regional league in Canada
League1 Ontario, semi-professional regional league in Canada
- League1 Ontario (women), semi-professional women's regional league in Canada
Scottish League One, the third tier of football in Scotland
Thai League 1, the top tier of football in Thailand
USL League One, a third-tier soccer league in the United States