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I am born in the U.K. if I bring my birth certificate is that good evidence that I’m from the uk. Either by Eurostar or flight

  • Note that Mauritian passport holders have visa-free access to the UK for up to 6 months, so even if you weren't in born the UK you'd likely still be allowed in. (Same goes for the Schengen area.) The question is whether a UK citizen must present themselves as a UK citizen to UK border control. – Michael Seifert Feb 13 at 12:59
  • Isn't this the same question you already asked? Can I use a Mauritius passport to go from uk to paris and then Paris to uk If you want further information, look under the second answer here, as @MichaelSeifert says you also have visa-free access to the UK under your Mauritius passport it matches your situation. UK citizen without UK passport re-entering the UK – JakeDot Feb 13 at 13:52
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    The other question is about using visiting France and returning to the UK on a Mauritian passport, and OP was advised they should have proof of their UK citizenship. This question is about whether a British birth certificate is proof of UK citizenship. They're clearly very related and could very easily have been asked in one question, but they're also very clearly not the same question as each other. – Chris H Feb 13 at 14:23
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    I also think the advice about visa-free entry for citizens of Mauritius is misguided and could land OP in trouble. Citizens of Mauritius have time-limited visa-free entry for specific purposes which do not apply to OP. – Chris H Feb 13 at 14:26
  • Have you ever traveled outside the UK before? have you ever had a UK passport? (and if-so are you still in possesion of it, even if expired) – Peter Green Feb 13 at 16:03
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In short: No.

Birth in the UK does not automatically confer British citizenship (that's dependent on various other circumstances, depending on your date of birth). As such, a UK birth certificate is not proof of UK citizenship. I don't recommend attempting to use it to enter the UK.

Some comments have suggested you needn't worry about proving British citizenship as Mauritian citizens can enter visa-free. I do not advise this route - that visa-free entry is for specific purposes (tourism, some types of short-term business/educational visits) which do not appear to apply to you.

Acquiring a British passport will make this trip much easier.

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  • I am 19 years old if that makes a difference – Carnatic Hindustani Fusion Feb 13 at 15:02
  • @CarnaticHindustaniFusion it doesn't make a difference. The age thing only determines which set of criteria had to be fulfilled for you to have UK citizenship - but regardless of your age, your birth certificate doesn't show whether or not you fulfil those criteria. – Chris H Feb 13 at 15:20
  • AIUI if someone was born in the UK after the end of WW2, and before 1983 then the only way they would not be a British citizen is if their father was a foreign diplomat. – Peter Green Feb 13 at 15:48

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