English version

deed poll

From Longman Dictionary of Contemporary Englishdeed pollˈdeed poll noun [countable, uncountable]  PGCa legal document signed by only one person, for example in order to officially change your name Steve changed his name by deed poll to Elvis Presley-Smith.
Examples from the Corpus
deed pollLike his new name, changed by deed poll nine years before.I suggested that he might think of removing the last three syllables from his name, which he did by deed poll.After changing his name by deed poll to Captain Beany he needed a renewed passport to match his new identity.The Law Society will require evidence such as a marriage certificate, deed poll or statutory declaration.
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