Several popular OS distributions have Zabbix packages provided. You can use these packages to install Zabbix.
OS distributions may lack the latest version of Zabbix in their repositiories.
Zabbix SIA provides official RPM and DEB packages for:
Package files are available at repo.zabbix.com. Yum and apt repositories are also available on the server. A step-by-step tutorial for installing Zabbix from packages is provided in sub-pages here.