Surname Ai (Ai 
, 愛 , アイ , among others...) , worldwide, is a widespread cognomen. The last name Ai is characteristic of Japan, where it is quite a common surname, Malaysia, and Macao (explore the name in all countries). Measured by absolute frequency, it most frequently occurs in China, Japan, and Malaysia. Much less frequently, Ai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ai | China, Japan, Malaysia, Indonesia, Myanmar |
| 愛, 哀 | China |
| アイ | Japan |
| Ай, Аи | China, Russia, Kazakhstan, Armenia, Ukraine |
| أي | Iraq, Egypt, Saudi Arabia, Morocco |
| איי | Israel |
Aghî, Aight, Aj, Ajo, Alj, All Right, Avea, Ay, Aye, Aì, Aí, Aî, Aï, Aÿ, Aĩ, Aī, Aĭ, Aį, Aı, Aǐ, Aｉ, Ei, Ghài, High, I, I-Ai, Ky, Mujdei, Neai, Ngải, Oi, Sugiyama, Taç, Yi, Yì, Ài, Àì, Àí, Àî, Àï, Àī, Àį, Àǐ, Àｉ, Ái, Áì, Áí, Áî, Áï, Áĩ, Áī, Âi, Âì, Âí, Âî, Âï, Âī, Ãghï, Ãi, Ãì, Ãí, Ãî, Ãï, Ãī, Ãĭ, Ãį, Ói, Āi, Āì, Āí, Āî, Āï, Āī, Āį, Āǐ, Ăi, Ăî, Ăï, Ăĩ, Ăī, Ăĭ, Ăį, Ąi, Ąì, Ąî, Ąï, Ąī, Ąĭ, Ąį, Ōi, Ǎi, Ǎì, Ǎí, Ǎī, Ǎǐ, Ǎｉ, Ǻi, Ǻĩ, Ǻĭ, Ɑi, Сугияма, آإ, آي, آی, أإ, اإ, ای, অই, আই, ঐ, ถาอ้าย, สายอ้าย, อัย, อัยย์, อาย, อ่าย, เผ่าอ้าย, ใ, ใอ, ใอ่, ใอ๋, ไอด์, ไอร่, ไอร์, ไอ้, ไอ๊, ไอ๋, ໄ, ໄໜ, ໜໄໜ, အိ, အိ့, အိး, အိးးးး, အိ္, အ္ိ, ဲ, ဲ့့, ္အိ, ်အိ, Ại, Ải, Ặí, エ, ㄞ, 乂, 伌, 僾, 叆, 哀帝, 哎, 唉, 啀, 嗌, 嗳, 嘊, 噯, 埃, 壒, 娭, 娾, 嫒, 嬡, 懓, 懝, 挨, 捱, 敱, 敳, 昹, 暧, 曖, 欸, 毐, 溾, 濭, 爱, 爱氏, 爱衣, 瑷, 璦, 癌, 皑, 皚, 皧, 瞹, 矮, 砹, 碍, 礙, 艾, 蔼, 薆, 藍, 譪, 譺, 躷, 銰, 鎄, 鑀, 锿, 閡, 隘, 霭, 靄, 靉, 餲, 馤, 騃, 鱫, 鴱, Ａi, Ａì, Ａī, and Ａǐ
| nanying ai (b. 1583) |
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| ai chengen Qing dynasty person CBDB = 72850 (b. 1785) |
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| amy ai Professor of social work (b. 1950) |
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| shōsuke ai CN (b. 1941) |
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| huisheng ai (b. 1958) |
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| mengqing ai (b. 1958) |
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| rémy nguyen bac ai (b. 1969) |
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| randy ai (b. 1969) |
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| tao ai researcher ORCID 0000-0003-2511-383X |
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| jing ai Ph.D. University of Texas at Austin 2008 |
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| albert ai Ph.D. University of California, Berkeley 2019 |
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| weipeng ai researcher |
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| xiaohui ai researcher |
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| yong ai researcher (ORCID 0000-0002-7917-3574) |
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| z t ai researcher |
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