Haidari F.C.

{{Infobox football club

| clubname = AO Haidari

| image = Haidari FC logo.png

| image_size =

| fullname = Haidari Athletic Club

| founded = {{Start date and age|df=yes|1937}}

| ground = Takis Charalambidis Stadium

| capacity = 600

| chairman = Michalis Theodosiadis

| manager = Giannis Chloros

| league = Gamma Ethniki

| season = 2023–24

| position = Gamma Ethniki (Group 4), 9th

| website = http://www.aohaidariou.com/

| pattern_la1 =

| pattern_b1 = _

| pattern_ra1 =

| leftarm1 = ff0000

| body1 = ff0000

| rightarm1 = ff0000

| shorts1 = 000080

| socks1 = ff0000

| pattern_la2 = _bluestripes

| pattern_b2 = _blueshoulders

| pattern_ra2 = _bluestripes

| leftarm2 = FFFFFF

| body2 = FFFFFF

| rightarm2 = FFFFFF

| shorts2 = FFFFFF

| socks2 = 0000FF

}}

Haidari Football Club (Greek: Α.Ο. Χαϊδαρίου A.O. Haidariou) is a Greek football club, based in Haidari, Athens. It currently plays in the local Athens Football Clubs Association championships, the fifth level of Greek football. The club's biggest achievement was participating in the Beta Ethniki for three consecutive seasons, 2005–06 through 2007–08,{{cite web|url=http://www.haidarifc.com/index.php/2011-09-26-15-05-32|title=History|publisher=haidarifc.com|language=Greek|accessdate=14 August 2012}} as well as reaching the Round of 16 in the 2006–07 Greek Cup{{cite web|url=https://www.rsssf.org/tablesg/grkcup07.html|title=Greece Cup 2006/07|last=Stokkermans|first=Karel|date=2 November 2007|publisher=Rec.Sport.Soccer Statistics Foundation|accessdate=14 August 2012}} following their win against AEK Athens F.C.

The club was founded in 1937 and their first club colours were yellow and black, changing to blue and red 40 years later. Their first lower national division entry was in 1986 (Fourth Division) and the first time in the Third Division in 1990.