William Harrington
William Harrington may refer to:
- William J. Harrington, politician in Manitoba, Canada
- William F. Harrington, American biochemist
- William D. Harrington, Nova Scotia politician
- William Harrington (Irish cricketer), Irish cricketer
- William Harrington (English cricketer), English cricketer
- William Harrington (knight), English knight
- William Harrington (priest), English Jesuit priest and Martyr
- William Harrington (MP), Member of Parliament for Lancashire
- William Harrington (artist), Irish artist
- Bill Harrington (broadcaster), American sportscaster, children's television host, and news reporter
- Bill Harrington (baseball), American baseball pitcher
- Bill Harrington (Australian footballer), Australian rules footballer for Footscray
- Bill Harrington (Irish footballer), Irish international footballer