1999–2000 All-Ireland Senior Club Football Championship
| Dates | 3 October 1999 – 17 March 2000 | ||
|---|---|---|---|
| Teams | 33 | ||
| Sponsor | Allied Irish Bank | ||
| Champions | Crossmaglen Rangers (3rd title) Anthony Cunningham (captain) Joe Kernan (manager) | ||
| Runners-up | Na Fianna Mick Galvin (captain) Paul Caffrey (manager) | ||
| Tournament statistics | |||
| Matches played | 37 | ||
| Top scorer(s) | Oisín McConville (3-29) | ||
| |||
The 1999–2000 All-Ireland Senior Club Football Championship was the 30th staging of the All-Ireland Senior Club Football Championship since its establishment by the Gaelic Athletic Association in 1970-71. The championship began on 3 October 1999 and ended on 17 March 2000.
Crossmaglen Rangers entered the championship as the defending champions.
On 17 March 2000, Crossmaglen Rangers won the championship following a 1–14 to 0–12 defeat of Na Fianna in the All-Ireland final at Croke Park. It was their third championship title overall and their second title in succession.
Crossmaglen's Oisín McConville was the championship's top scorer with 3-29.