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Home São Tomé Dual Citizenship in the U.S. — 2026 Guide
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São Tomé Dual Citizenship in the U.S. — 2026 Guide

Data last verified: September 2026 — take qualified advice on any individual case.

Santomean nationality runs by descent, and the country has generally accepted that its nationals hold other citizenships — a diaspora concentrated in Portugal, Angola and Cape Verde makes that a practical necessity. The obstacle here is not the rule but the absence of a consulate to document anything.

Quick facts

BasisDescent
Another nationalityGenerally accepted; confirm
ObstacleNo consulate here
CommunityMember of the CPLP

Membership of the Community of Portuguese-Speaking Countries shapes the practical landscape: it determines where the working embassies are and which country’s mission is likely to be able to help with a complicated file.

What to establish

QuestionWhy it mattersWhere to ask
What documents does the family hold?Determines what is possibleFamily records
Can the UN mission assist?It is the only presence hereThe mission, in writing
Could Lisbon handle it?That embassy is fully operationalThe embassy in Portugal
Your U.S. immigration positionMay bear on what you should doAn immigration lawyer
Land and inheritanceShaped by post-independence reformA lawyer at home

Land deserves its own advice. Plantations were nationalised after independence and later redistributed, so title histories are complicated and a family’s position may not be what an older relative remembers.

What to do

  1. Take immigration advice first if your position here is unresolved.
  2. Gather every Santomean document the family holds.
  3. Write to the Permanent Mission and ask what it can do.
  4. Ask whether the embassy in Lisbon could handle your file.
  5. Establish the children’s position alongside your own.
  6. Take local legal advice on land and inheritance.

Documents to gather

Where to enquire

At the Permanent Mission in New York; decisions rest with the authorities at home.

No offices currently listed.

Additional notes

Keep expired documents

Where there is no consulate to verify anything, an old passport may be the best evidence you have.

Lisbon is worth asking

The embassy in Portugal serves a much larger community and is fully operational.

Land histories are complicated

Nationalisation and later redistribution mean titles are not always what a family assumes.

Take proper advice

A lawyer familiar with Santomean law is the right source for anything consequential.