The countries and regions whose nationals are exempt from entry visas to the Sultanate for a period of 14 days, subject to certain requirements, are listed on this link:

https://fm.gov.om/visitors/entry-visas/

Citizens of GCC countries (the Kingdom of Bahrain, the State of Kuwait, the State of Qatar, the Kingdom of Saudi Arabia and the United Arab Emirates) do not require visas to enter Oman.

The process of obtaining a visa for visitors to Oman is managed by the Royal Oman Police (ROP).

Citizens of other nationalities can establish their visa options via the ROP’s eVisa website by clicking here.

https://evisa.rop.gov.om/visa-eligibility?p_p_id=visawizard_WAR_visaeligibilitywizardportlet&p_p_lifecycle=0&p_p_state=normal&p_p_mode=view&p_p_col_id=column-1&p_p_col_count=1&_visawizard_WAR_visaeligibilitywizardportlet_myaction=recheck

You can apply for a visa via the ROP’s eVisa website by clicking here. https://www.rop.gov.om/english/visaservices_mainpage.aspx