Muhamad Kaironnisam Sahabudin Hussain (born 10 May 1979 in Mergong) is a Malaysian former footballer.
During 2004 season, he help Perlis to clinch their first Malaysia Cup title after 83 years trying to win it.
[3][4] He also played for UPB-MyTeam, Johor FC and Felda United during his club career.
With Malaysia, Kaironnisam has represented the national team since Allan Harris era.
His son, Firdaus Kaironnisam has played for the Malaysia national under-16 football team.