If Hughes is your family name and you want a Chinese surname, start by comparing 休 Xiū and 修 Xiū. 休 keeps the first character of the established transcription 休斯 Xiūsī; 修 keeps exactly the same Mandarin sound but changes the written association towards learning, cultivation or repair. Both are documented surnames. I would try 休 first for the clearest connection to Hughes, and 修 if its character means more to you personally.
That is a choice between two Chinese surnames, rather than a claim that either is the historical equivalent of Hughes. You can also keep the full transcription 休斯 if recognising your original surname matters more than having a one-character surname.
What happens to the sound of Hughes?
Cambridge Dictionary gives /hjuːz/ for both its British and American reference pronunciations. Hughes has one syllable, ending in a voiced /z/. The spelling does not call for a separate “ges” syllable.
The Chinese form 休斯 is documented in a bilingual name reference published by Hebei University. It is useful evidence of actual transcription practice, rather than a rule that every Hughes must use the same spelling.
Read in Mandarin, Xiū-sī has two syllables. Xiū is roughly /ɕjoʊ/: its initial is a Mandarin sound written x, not the English h, and its vowel sequence does not reproduce English /uː/. The second character adds a syllable where English has a final consonant. Choosing 休 alone removes that second character and the information it carries about the end of Hughes.
So Xiū is an explainable approximation, not an exact sound match. Its high, level first tone is part of Mandarin; English Hughes does not have that lexical tone. Changing 休 to 修 changes none of these phonetic compromises.
休: keep the transcription's first character
休 is a surname with the reading Xiū. The Ministry of Education dictionary lists the surname under xiū, separately from the character's other readings. You do not need to substitute a more familiar-looking surname just because you have mostly encountered 休 in ordinary words.
As a word, 休 can mean resting or stopping. Those meanings offer a quiet association if you like it, but they do not describe the personality of people with this surname. They also do not translate Hughes.
There is a practical point to check when adding a given name: 休 can introduce a prohibition, as in 休想, meaning “don't even think of it”. That does not make the surname unsuitable. It means the next character deserves attention, just as a surname in any language can unexpectedly join up with a given name to form a word.
The strongest reason to choose 休 remains straightforward: you have kept the beginning of 休斯, unchanged in writing and sound. If you want a name whose relationship to Hughes is easy to explain, this is a good starting point.
修: the same sound, a different character
修 Xiū is independently recorded as a surname in the same official dictionary. Its ordinary meanings include repairing something, studying and cultivating oneself. These give you a different way to explain the character while retaining the sound of 休.
Perhaps the idea of continuing to learn matters more to you than keeping the exact transcription character. In that case, 修 is worth trying. It is a personal association you would be adding, not proof that Hughes means “scholar” or that Chinese families called 修 share a scholarly ancestor with yours.
At a first introduction, you could distinguish the two written forms with 休息的休, “the 休 in the word for rest”, or 修理的修, “the 修 in the word for repair”. Both surnames fit the spoken sentence 我姓…… Wǒ xìng…, “My surname is…”, in the same way. Someone hearing Xiū alone cannot tell which character you have chosen.
What about 秀 or 脩?
秀 Xiù is also a real surname; the Ministry of Education entry records it under the falling fourth tone. Its meanings include plants flowering and things being fine or outstanding. It is not merely a character that can appear in a given name.
Compared with 休 and 修, however, 秀 changes the tone as well as the writing. I would consider it if you specifically prefer its character and associations, rather than treating it as a closer match for Hughes.
There is also 脩 Xiū, which the dictionary records separately as a surname. It shares some uses with 修 but also has its own written identity and meanings, including dried meat. If you choose it, keep that character consistently; it should not be silently substituted for 修 on the assumption that the two surnames are interchangeable.
These alternatives do not give a reason to abandon the beginning of Hughes in favour of a character from later in the transcription. The first-character choices already have documented surname use.
Does the history of Hughes suggest a translation by meaning?
Not one that works for every family. The *Dictionary of American Family Names* entry reproduced by FamilySearch distinguishes an English and Welsh formation from Hugh with an added -s from Irish and Scottish uses adopted for Gaelic names based on Aodh, “fire”. Its Hugh entry traces the Norman personal-name route through Old French Hue to Germanic Hugo and a root associated with mind or spirit.
Those are different routes to the spelling Hughes. They do not make “mind” and “fire” interchangeable meanings of your own surname. Choosing a Chinese character solely from one of them would require a decision about which connection you actually want to preserve, preferably informed by your family history.
This is why I would not turn Hughes into an automatic recommendation for a fire-related surname, or invent an ancient Chinese scholar as its counterpart. A personal-name origin supplies no shared occupation to build that story on. The sound-based choices work without assigning you ancestry, beliefs or a particular personality.
The choice I would test first
Choose 休 Xiū if you want to retain the first character of 休斯. Compare 修 Xiū if learning or cultivation is an association you actively want to add. Consider 秀 Xiù only if its different character and tone appeal to you; retain 休斯 Xiūsī when keeping Hughes recognisable in full is the priority.
Then test your preferred surname with the actual Chinese given name you intend to use. Say the whole name in an introduction and ask a Mandarin speaker what they hear before showing the characters. A surname can be well supported on its own while a particular full name creates an unintended phrase. Without that given name, this comparison is a starting point, not a completed naturalness test.
The ranking reference
Hughes appears at number 21 on the private British Surnames list used for this series. The approved geographical scope is Great Britain: England, Scotland and Wales, excluding Northern Ireland. The ranking's reference year, counting unit and method have not been verified; it is not an official current UK population ranking. Ranking page; publisher's scope description.
