Duncan MacArthur (Ontario politician)

{{Short description|Canadian politician from Ontario}}{{For|the other Ontario MPP|Duncan McArthur (Canadian politician)}}{{One source|date=November 2024}}

{{Infobox officeholder

| name = Duncan MacArthur

| image =

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| parliament = Ontario Provincial

| term_start = December 11, 1911

| term_end = May 29, 1914

| predecessor = James William Doyle

| successor = John Grieve

| riding = Middlesex North

| party = Conservative

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| birth_place =

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}}

Duncan MacArthur was a Canadian politician from Ontario. He represented Middlesex North in the Legislative Assembly of Ontario from 1911 to 1914.{{Cite web |date=1911-12-11 |title=Duncan MacArthur {{!}} Legislative Assembly of Ontario |url=https://www.ola.org/en/members/all/duncan-macarthur |access-date=2024-11-06 |website=www.ola.org |language=en}}