Editing List of inventors (section)

===Y===
* [[Pavel Yablochkov]] (1847–1894), Russia – [[Yablochkov candle]] (first commercially viable electric carbon [[arc lamp]])
* [[Hidetsugu Yagi]] (1886–1976), together with [[Shintaro Uda]] (1896–1976), Japan – [[Yagi–Uda antenna]]
* [[Alexander Sergeyevich Yakovlev|Alexander Yakovlev]] (1906–1989), Russia – [[Yakovlev|Yak]]-series aircraft, including [[Yakovlev Yak-40]] (the first [[regional jet]])
* [[Linus Yale Jr.]] (1821–1868), U.S. – [[cylinder lock]]
* [[Linus Yale Sr.]] (1797–1858), U.S. – [[pin tumbler lock]]
* [[Shunpei Yamazaki]] (born 1942), Japan – patents in [[computer science]] and [[solid-state physics]], see [[List of prolific inventors]]
* [[Gazi Yaşargil]] (born 1925), Turkey – [[Microneurosurgery]]
* [[Ryōichi Yazu]] (1878–1908), Japan – [[Ryōichi Yazu|Yazu Arithmometer]]
* [[Gunpei Yokoi]] (1941–1997), Japan – [[Game Boy]]
* [[Arthur M. Young]] (1905–1995), U.S. – [[Bell Helicopter]]
* [[Vladimir Yourkevich]] (1885–1964), Russia/France/U.S. – ship [[hull (watercraft)|hull]] design
* [[Tu Youyou]] (born 1930), China – [[Artemisinin]]
* [[Sergei Yudin (surgeon)|Sergei Yudin]] (1891–1954), Russia – [[cadaveric blood transfusion]] and other medical operations
* [[Muhammad Yunus]] (born 1940), [[Bangladesh]] – [[microcredit]], [[microfinance]]
* [[A. Albert Yuzpe|Abraham Albert Yuzpe]] (born 1938), U.S. – [[Yuzpe regimen]] (= form of [[Emergency contraception]])