If you're talking about someone whose first and last names are the same, I don't think this is very common, sounds like a fictional character or stage name maybe. Part of this reason is that there aren't many names that work as both first and last names, though there might be some homonyms or close homonyms. There are names that may sound similar but use different characters.
Seems like only 幸 could potentially be read ゆき/Yuki as a surname:
Yuki(幸) Japanese Last Name Meaning and Origins
There are also surnames pronounced Yūki (with a long "u"):
Yūki (surname) - Wikipedia
There are more variants that start with "yuki." Please note that the first one in this list is mentioned in the above wikipedia article and is pronounced with a long "u"
Surnames:
[TABLE=full]
[TR]
[TD]
NAME[/TD]
[TD]
RANKING[/TD]
[TD]
MEANING[/TD]
[/TR]
[TR]
[TD]
Yuki(結城)[/TD]
[TD]829[/TD]
[TD]結 meaning tie, bind, contract, join, organize, do up hair, fasten./ 城 meaning castle.[/TD]
[/TR]
[TR]
[TD]
Yuki(幸)[/TD]
[TD]2863[/TD]
[TD]幸 meaning happiness, blessing, fortune.[/TD]
[/TR]
[TR]
[TD]
Yukimoto(行本)[/TD]
[TD]5892[/TD]
[TD]行 meaning going, journey, carry out, conduct, act, line, row, bank./ 本 meaning book, present, main, origin, true, real, counter for long cylindrical things.[/TD]
[/TR]
[TR]
[TD]
Yukimoto(雪本)[/TD]
[TD]7259[/TD]
[TD]雪 meaning snow./ 本 meaning book, present, main, origin, true, real, counter for long cylindrical things.[/TD]
[/TR]
[TR]
[TD]
Yukino(雪野)[/TD]
[TD]8706[/TD]
[TD]雪 meaning snow./ 野 meaning plains, field, rustic, civilian life.[/TD]
[/TR]
[TR]
[TD]
Yukita(雪田)[/TD]
[TD]6168[/TD]
[TD]雪 meaning snow./ 田 meaning rice field, rice paddy.[/TD]
[/TR]
[TR]
[TD]
Yukitomo(行友)[/TD]
[TD]9702[/TD]
[TD]行 meaning going, journey, carry out, conduct, act, line, row, bank./ 友 meaning friend.[/TD]
[/TR]
[TR]
[TD]
Yukizaki(柚木崎)[/TD]
[TD]9937[/TD]
[TD]柚 meaning citron./ 木 meaning tree, wood./ 崎 meaning promontory, cape, spit.[/TD]
[/TR]
[/TABLE]
I don't know about "Yuki" by itself as a first name, but I've met a lot of people named Yūki (with a long "u"). Similar there are many names that contain "Yuki," again with many different character combinations, but this site doesn't indicate long vowels.
Girl Names:
[TABLE=full]
[TR]
[TD]
NAME[/TD]
[TD]
JAPANESE[/TD]
[TD]
MEANING[/TD]
[TD]
GENDER[/TD]
[/TR]
[TR]
[TD]Yuki[/TD]
[TD]
由貴[/TD]
[TD]由 is wherefore, a reason. / 貴 is precious, value, prize, esteem, honor.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yuki[/TD]
[TD]
有希[/TD]
[TD]有 is possess, have, exist, happen, occur, approx. / 希 is hope, beg, request, pray, beseech, Greece, dilute (acid), rare, few, phenomenal.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yuki[/TD]
[TD]
薫[/TD]
[TD]薫 is send forth fragrance, fragrant, be scented, smoke (tobacco).[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yuki[/TD]
[TD]
有紀[/TD]
[TD]有 is possess, have, exist, happen, occur, approx. / 紀 is chronicle, account, narrative, history, annals, geologic period.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yuki[/TD]
[TD]
友紀[/TD]
[TD]友 is friend. / 紀 is chronicle, account, narrative, history, annals, geologic period.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yuki[/TD]
[TD]
由紀[/TD]
[TD]由 is wherefore, a reason. / 紀 is chronicle, account, narrative, history, annals, geologic period.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yuki[/TD]
[TD]
優希[/TD]
[TD]優 is tenderness, excel, surpass, actor, superiority, gentleness. / 希 is hope, beg, request, pray, beseech, Greece, dilute (acid), rare, few, phenomenal.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yuki[/TD]
[TD]
幸[/TD]
[TD]幸 is happiness, blessing, fortune.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yuki[/TD]
[TD]
由季[/TD]
[TD]由 is wherefore, a reason. / 季 is seasons.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yuki[/TD]
[TD]
友希[/TD]
[TD]友 is friend. / 希 is hope, beg, request, pray, beseech, Greece, dilute (acid), rare, few, phenomenal.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yuki[/TD]
[TD]
結衣[/TD]
[TD]結 is tie, bind, contract, join, organize, do up hair, fasten. / 衣 is garment, clothes, dressing.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yuki[/TD]
[TD]
夕貴[/TD]
[TD]夕 is evening. / 貴 is precious, value, prize, esteem, honor.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yuki[/TD]
[TD]
由希[/TD]
[TD]由 is wherefore, a reason. / 希 is hope, beg, request, pray, beseech, Greece, dilute (acid), rare, few, phenomenal.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yuki[/TD]
[TD]
ゆき[/TD]
[TD]ゆ is Hiragana. / き is Hiragana.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yuki[/TD]
[TD]
ユキ[/TD]
[TD]ユ is Katakana. / キ is Katakana.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yuki[/TD]
[TD]
亨[/TD]
[TD]亨 is pass through, go smoothly.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yuki[/TD]
[TD]
佑樹[/TD]
[TD]佑 is help, assist. / 樹 is timber, trees, wood, establish, set up.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yuki[/TD]
[TD]
佑紀[/TD]
[TD]佑 is help, assist. / 紀 is chronicle, account, narrative, history, annals, geologic period.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yuki[/TD]
[TD]
侑[/TD]
[TD]侑 is urge to eat.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yuki[/TD]
[TD]
友貴[/TD]
[TD]友 is friend. / 貴 is precious, value, prize, esteem, honor.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yuki[/TD]
[TD]
優紀[/TD]
[TD]優 is tenderness, excel, surpass, actor, superiority, gentleness. / 紀 is chronicle, account, narrative, history, annals, geologic period.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yuki[/TD]
[TD]
由樹[/TD]
[TD]由 is wherefore, a reason. / 樹 is timber, trees, wood, establish, set up.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yuki[/TD]
[TD]
悠希[/TD]
[TD]悠 is permanence, distant, long time, leisure. / 希 is hope, beg, request, pray, beseech, Greece, dilute (acid), rare, few, phenomenal.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yuki[/TD]
[TD]
祐希[/TD]
[TD]祐 is help. / 希 is hope, beg, request, pray, beseech, Greece, dilute (acid), rare, few, phenomenal.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yuki[/TD]
[TD]
侑希[/TD]
[TD]侑 is urge to eat. / 希 is hope, beg, request, pray, beseech, Greece, dilute (acid), rare, few, phenomenal.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yuki[/TD]
[TD]
柚希[/TD]
[TD]柚 is citron. / 希 is hope, beg, request, pray, beseech, Greece, dilute (acid), rare, few, phenomenal.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yuki[/TD]
[TD]
優来[/TD]
[TD]優 is tenderness, excel, surpass, actor, superiority, gentleness. / 来 is come, due, next, cause, become.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yuki[/TD]
[TD]
結生[/TD]
[TD]結 is tie, bind, contract, join, organize, do up hair, fasten. / 生 is life, genuine, birth.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yuki[/TD]
[TD]
柚稀[/TD]
[TD]柚 is citron. / 稀 is rare, phenomenal, dilute (acid).[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yuki[/TD]
[TD]
優妃[/TD]
[TD]優 is tenderness, excel, surpass, actor, superiority, gentleness. / 妃 is queen, princess.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yukia[/TD]
[TD]
優愛[/TD]
[TD]優 is tenderness, excel, surpass, actor, superiority, gentleness. / 愛 is love, affection, favourite.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yukie[/TD]
[TD]
幸恵[/TD]
[TD]幸 is happiness, blessing, fortune. / 恵 is favor, blessing, grace, kindness.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yukiha[/TD]
[TD]
千波[/TD]
[TD]千 is thousand. / 波 is waves, billows, Poland.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yukiho[/TD]
[TD]
雪穂[/TD]
[TD]雪 is snow. / 穂 is ear, ear (grain), head, crest (wave).[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yukiko[/TD]
[TD]
幸子[/TD]
[TD]幸 is happiness, blessing, fortune. / 子 is child, sign of the rat, 11PM-1AM, first sign of Chinese zodiac.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yukiko[/TD]
[TD]
恭子[/TD]
[TD]恭 is respect, reverent. / 子 is child, sign of the rat, 11PM-1AM, first sign of Chinese zodiac.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yukiko[/TD]
[TD]
由紀子[/TD]
[TD]由 is wherefore, a reason. / 紀 is chronicle, account, narrative, history, annals, geologic period. / 子 is child, sign of the rat, 11PM-1AM, first sign of Chinese zodiac.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yukiko[/TD]
[TD]
侑子[/TD]
[TD]侑 is urge to eat. / 子 is child, sign of the rat, 11PM-1AM, first sign of Chinese zodiac.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yukiko[/TD]
[TD]
由希子[/TD]
[TD]由 is wherefore, a reason. / 希 is hope, beg, request, pray, beseech, Greece, dilute (acid), rare, few, phenomenal. / 子 is child, sign of the rat, 11PM-1AM, first sign of Chinese zodiac.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yukiko[/TD]
[TD]
順子[/TD]
[TD]順 is obey, order, turn, right, docility, occasion. / 子 is child, sign of the rat, 11PM-1AM, first sign of Chinese zodiac.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yukiko[/TD]
[TD]
友紀子[/TD]
[TD]友 is friend. / 紀 is chronicle, account, narrative, history, annals, geologic period. / 子 is child, sign of the rat, 11PM-1AM, first sign of Chinese zodiac.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yukiko[/TD]
[TD]
有紀子[/TD]
[TD]有 is possess, have, exist, happen, occur, approx. / 紀 is chronicle, account, narrative, history, annals, geologic period. / 子 is child, sign of the rat, 11PM-1AM, first sign of Chinese zodiac.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yukina[/TD]
[TD]
幸奈[/TD]
[TD]幸 is happiness, blessing, fortune. / 奈 is Nara, what?.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yukina[/TD]
[TD]
由奈[/TD]
[TD]由 is wherefore, a reason. / 奈 is Nara, what?.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yukina[/TD]
[TD]
侑奈[/TD]
[TD]侑 is urge to eat. / 奈 is Nara, what?.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yukino[/TD]
[TD]
雪乃[/TD]
[TD]雪 is snow. / 乃 is from, possessive particle, whereupon, accordingly.[/TD]
[TD]Girl[/TD]
[/TR]
[TR]
[TD]Yukisa[/TD]
[TD]
千紗[/TD]
[TD]千 is thousand. / 紗 is gauze, gossamer.[/TD]
[TD]Girl[/TD]
[/TR]
[/TABLE]
Boy Names:
[TABLE=full]
[TR]
[TD]
NAME[/TD]
[TD]
JAPANESE[/TD]
[TD]
MEANING[/TD]
[TD]
GENDER[/TD]
[/TR]
[TR]
[TD]Yuki[/TD]
[TD]
優希[/TD]
[TD]優 is tenderness, excel, surpass, actor, superiority, gentleness. / 希 is hope, beg, request, pray, beseech, Greece, dilute (acid), rare, few, phenomenal.[/TD]
[TD]Boy[/TD]
[/TR]
[TR]
[TD]Yuki[/TD]
[TD]
優輝[/TD]
[TD]優 is tenderness, excel, surpass, actor, superiority, gentleness. / 輝 is radiance, shine, sparkle, gleam, twinkle.[/TD]
[TD]Boy[/TD]
[/TR]
[TR]
[TD]Yukihira[/TD]
[TD]
幸平[/TD]
[TD]幸 is happiness, blessing, fortune. / 平 is even, flat, peace.[/TD]
[TD]Boy[/TD]
[/TR]
[TR]
[TD]Yukihiro[/TD]
[TD]
幸大[/TD]
[TD]幸 is happiness, blessing, fortune. / 大 is large, big.[/TD]
[TD]Boy[/TD]
[/TR]
[TR]
[TD]Yukimasa[/TD]
[TD]
幸大[/TD]
[TD]幸 is happiness, blessing, fortune. / 大 is large, big.[/TD]
[TD]Boy[/TD]
[/TR]
[TR]
[TD]Yukita[/TD]
[TD]
幸太[/TD]
[TD]幸 is happiness, blessing, fortune. / 太 is plump, thick, big around.[/TD]
[TD]Boy[/TD]
[/TR]
[TR]
[TD]Yukitaro[/TD]
[TD]
幸太郎[/TD]
[TD]幸 is happiness, blessing, fortune. / 太 is plump, thick, big around. / 郎 is son, counter for sons.[/TD]
[TD]Boy[/TD]
[/TR]
[TR]
[TD]Yukiteru[/TD]
[TD]
幸輝[/TD]
[TD]幸 is happiness, blessing, fortune. / 輝 is radiance, shine, sparkle, gleam, twinkle.[/TD]
[TD]Boy[/TD]
[/TR]
[TR]
[TD]Yukiya[/TD]
[TD]
透[/TD]
[TD]透 is transparent, permeate, filter, penetrate.[/TD]
[TD]Boy[/TD]
[/TR]
[/TABLE]
