William Dey

{{short description|Canadian ice hockey player}}

{{about||the Scottish architect|William Gordon Dey|the fictional character|William Dey (Arrowverse)}}

{{Infobox person

| name = William Dey

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| birth_date = {{birth date|1870|06|04}}

| birth_place = Ottawa, Ontario, Canada

| death_date = {{death date and age|1921|08|20|1870|06|04}}

| death_place = Ottawa, Ontario, Canada

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| relatives = Ted Dey (brother)
Edgar Dey (nephew)

| spouse =

| known_for = Owner of the Ottawa Senators (1917-1923)
Owner of Dey's Arenas

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{{Infobox ice hockey biography

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| played_for = Ottawa Hockey Club (1892-1897)

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William Ernest Dey (June 4, 1870 – August 20, 1921) was an early amateur ice hockey player for the Ottawa Hockey Club. He was a member of the Dey family of Ottawa, Canada which was successful in boat-building, arenas and ice hockey businesses. He was born in Ottawa.