Antigua and Barbuda, Argentina, Australia, Austria, Bahamas, Barbados, Belgium, Belize, Brazil, Canada, Denmark, Dominica, Finland, France, Germany, Greece, Grenada, Ireland, Italy, Jamaica, Japan, Luxembourg, Montserrat, New Zealand, North Korea, Norway, Portugal, Russia, South Africa, South Korea, Spain, St Christopher and Nevis (St Kitts), St Lucia, St Vincent & the Grenadines, Suriname, Sweden, Switzerland, Netherlands, New Zealand, Trinidad and Tobago, United Kingdom, United States of America can enter without a visa for up to 90 days.
All other nationalities need to head to an embassy/consulate.
Visa Requirements for Entry Into Guyana
Guyana Foreign Affairs
Guyana embassies and consulates