Iyali Cycadaceae kalma ce ta botanical wacce ke nufin rukunin tsire-tsire na cycad waɗanda ke cikin tsari Cycadales. Cycads tsire-tsire ne na farko waɗanda suka kasance sama da shekaru miliyan 300 kuma suna kama da dabino ko ferns. Waɗannan tsire-tsire galibi ana siffanta su da samun manya-manyan ganyen fili waɗanda ke tsiro kai tsaye daga tushe na tsakiya, kuma galibi ana amfani da su wajen gyaran gyare-gyare ko kuma a matsayin tsire-tsire na cikin gida saboda kyawawan ganyen su. Kalmar "Family Cycadaceae" tana nufin ƙungiyar taxonomic na tsire-tsire na cycad waɗanda ke cikin tsari na Cycadales kuma sun haɗa da jinsin Cycas da Zamia.