ETA needed. Nauru passport holders need an ETA granted before travel to visit Guam.
Entry
ETA
Stay
45 days per entry
Covers
Tourist entry
Our summary of the official rule. Not an official stamp.
Official source
ecfr.govElectronic Code of Federal Regulations (US Office of the Federal Register), 8 CFR 212.1Checked 3 Nov 2026
Nationals of the following countries are eligible to participate in the Guam-CNMI Visa Waiver Program for purposes of admission to both Guam and the CNMI: Australia, Brunei, Japan, Malaysia, Nauru, New Zealand, Papua New Guinea, Republic of Korea, Singapore, and the United Kingdom.
Quoted from the source.
Who sets the entry rules
Guam admits visitors under the US Visa Waiver Program or the Guam-CNMI Visa Waiver Program. Visitors eligible for neither need a visa from a US embassy or consulate.