Mongolia: Knowledge Base profile
Published 4 September 2025
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About: Mongolia
This document contains useful information about Mongolia which will assist His Majesty’s Passport Office staff process passport applications.
Contacts
If you have any questions about the document and your line manager or senior caseworker cannot help you or you think that the document has factual errors then email the Guidance team.
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Publication
Below is information on when this version of the document was published:
- version 3.0
- published for Home Office staff on 2 September 2025
Changes from last version of this document
This document has been with formatting changes.
Mongolia: names
This section gives HM Passport Office operational staff information about names in Mongolia.
Name in Mongolia consist of:
- family name
- clan name
- forename
Change of name
A woman does not take her husband’s name when she gets married.
A Mongolia citizen can change their forename or surname once and can reinstate their original birth name once. They must apply to the governor or administrative office where their birth was registered in Mongolia.
Name alignment
A customer can align their Mongolia passport from the UK. They can issue a letter of consent or confidentiality through the Embassy of Mongolia instructing someone in Mongolia to act on their behalf.
Mongolia: nationality
This section gives HM Passport Office operational staff information about nationality in Mongolia.
Dual nationality is illegal in Mongolia.
Mongolia: legitimacy and parental responsibility
This section gives HM Passport Office operational staff information about legitimacy and parental responsibility in Mongolia.
Legitimacy
Mongolia does not recognise a difference between legitimate and illegitimate births. This means all births are legitimate whether the parents are married or not.
Parental responsibility
Both parents have joint responsibility in Mongolia.
Mongolia: adoption
This section gives HM Passport Office operational staff information about adoption in Mongolia.
Adoption is legal in Mongolia.
Mongolia: surrogacy
This section gives HM Passport Office operational staff information about surrogacy in Mongolia.
Surrogacy is illegal in Mongolia.
Mongolia: gender recognition
This section gives HM Passport Office operational staff information about gender recognition in Mongolia.
Transgender citizens are recognised in Mongolia.
Mongolia: civil partnerships and marriage
This section gives HM Passport Office operational staff information about civil partnerships and marriage in Mongolia.
Civil partnerships and same sex marriages are illegal in Mongolia.
Civil and traditional marriages are recognised in Mongolia.
All marriages in Mongolia must be registered with the Civil Registration Office to be legally recognised.
Mongolia: documents
This section gives HM Passport Office operational staff information about documents from Mongolia.
Birth certificates
All births in Mongolia must be registered within 15 days in central areas; and within 30 days in remote or rural areas. Birth registration must be done in person at a civil registry office. Late registration is allowed.
Birth certificates are issued when the birth has been registered.
If a child is born in Mongolia and both parents are foreign nationals or stateless persons, a letter confirming the birth will be provided by the hospital where the birth took place. After the birth has been registered, a birth certificate is issued, but it will not include a Mongolia registration number.
For an unmarried father to be named on the birth certificate, both parents must make a declaration of paternity.
If a mistake is identified on a birth certificate, it will be reissued with a small stamp in the corner.
Hospital notification records exist with both names.
Marriage certificates
There is no time limit to register a marriage in Mongolia.
Death certificates
All deaths must be registered within 30 days at the State registration office.
Death certificates are issued on registration of the death.
Identity documents
Foreign national residents must have a resident card.