Last name Yanyao (Yanyao 
) , all around the world, is a rare cognomen. The cognomen Yanyao is habitual in Taiwan, where it is a rare surname, and Brazil, where it is an extremely rare surname. More prevalently, Yanyao is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Yanyao | United States, Taiwan, Singapore, India, China |
Янйао, 严姚, 严尧, 严瑶, 严耀, 夵妖, 妍垚, 妍夭, 妍妖, 妍瑶, 嫣瑶, 宴尧, 宴瑶, 岩垚, 岩尧, 岩曜, 岩杳, 岩瑶, 岩耀, 延垚, 延夭, 延尧, 延曜, 延瑶, 延耀, 延要, 延遥, 延鹞, 彥瑤, 彦垚, 彦堯, 彦尧, 彦曜, 彦瑶, 彦耀, 彦遥, 晏瑶, 殷尧, 殷瑶, 沿药, 演耀, 炎垚, 炎夭, 炎尧, 炎峣, 炎窈, 炎耀, 炎药, 炎遥, 烟妖, 焰尧, 焰瑶, 焰耀, 焱垚, 焱尧, 焱峣, 焱瑶, 焱耀, 燕垚, 燕姚, 燕尧, 燕瑶, 燕耀, 燕遥, 琰垚, 琰瑶, 琰耀, 眼妖, 砚夭, 砚尧, 砚瑶, 砚耀, 砚肴, 艳垚, 艳夭, 艳妖, 艳姚, 艳尧, 艳幺, 艳曜, 艳瑶, 艳耀, 艳遥, 艷瑶, 衍垚, 衍尧, 衍耀, 衍遥, 言垚, 言尧, 言瑶, 言耀, 言要, 言遥, 闫瑶, 雁垚, 雁峣, 雁瑤, 雁瑶, 雁耀, 雁遥, 颜瑶, 颜耀, and 颜遥