RGO
RGO stands for:
- RGO (hand grenade) from Russian production
- Royal Guard of Oman the Omani Armed Forces # Royal Omani Guard
- Reichsgewerbeordnung which was first issued in 1869 at the time of the North German Confederation, see Trade Regulations (Germany) ,
- Revolutionary trade union opposition , the communist trade union in the Weimar Republic
- Royal Greenwich Observatory
- Pension plan , the additional pension for pastors and certain other employees in the Federation of Evangelical Free Churches
- the Central Welfare Council (Polish Rada Główna Opiekuńcza), a Polish charitable organization during the First and Second World Wars