{{Infoboks virksomhed|wikidata=alle}}
{{nihongo|'''Sumitomo Electric Industries, Ltd.'''|住友電気工業株式会社|Sumitomo Denki Kōgyō}} er en [[japan]]sk producent af elledninger og optiske fiberkabler. De har hovedkvarter i [[Osaka]].
Virksomheden blev etableret i 1897, som en producent af kobberledninger. Sumitomo Electric har 400 datterselskaber og over 280.000 ansatte i over 30 lande.<ref>{{Cite web |url=http://globaldocuments.morningstar.com/documentlibrary/document/2fa049eba8c8f644.msdoc/original |title=Archived copy |access-date=2014-02-13 |archive-date=2014-02-21 |archive-url=https://web.archive.org/web/20140221152037/http://globaldocuments.morningstar.com/documentlibrary/document/2fa049eba8c8f644.msdoc/original |url-status=dead }}</ref><ref>{{cite web|url=http://global-sei.com/csr/feature/2009/products.html|title=Products｜CSR｜Sumitomo Electric Industries, Ltd.|website=global-sei.com}}</ref><ref>{{cite web|url=https://www.unitedagainstnucleariran.com/taxonomy/term/161|title=Trading - UANI|website=www.unitedagainstnucleariran.com}}</ref><ref>{{Cite web|url=http://global-sei.com/sn/2008/374/6t.html|title = Sumitomo Electric Industries, LTD. &#124; Connect with Innovation}}</ref><ref>{{cite web|url=http://www.ftjt.net/en/course.asp|title=富通集团|website=www.ftjt.net}}</ref>
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