James Mahaffy

{{short description|Canadian politician}}

{{Use Canadian English|date=January 2023}}

{{Infobox officeholder

| name = James Caven Mahaffy

| image =

| imagesize = 150px

| caption =

| birth_date = {{birth date|1905|8|29}}

| birth_place =Port Elgin, Ontario{{cite journal|title=The Canadian Parliamentary Guide|author1=Normandin, P.G.|author2=Normandin, A.L.|journal=The Canadian Parliamentary Guide = Guide Parlementaire Canadien|date=1941|publisher=Normandin|issn=0315-6168|url=https://books.google.com/books?id=X1pLAAAAMAAJ|accessdate=2015-04-21}}

| death_date= {{death date and age|1986|11|29|1905|8|29}}

| death_place =

| title=Leader of the Official Opposition in Alberta

| term_start=February 18, 1943

| term_end=March 30, 1943

| predecessor=Alfred Speakman

| successor=James H. Walker

| term_start1 = 1940

| term_end1 = 1944

| predecessor1 = Edith Gostick
Ernest Manning
John Irwin
John Hugill

| successor1 =Rose Wilkinson
Howard MacDonald
Aylmer Liesemer

| office1 = MLA for Calgary

| religion =

| party = Independent Movement

| alma_mater =

| spouse =

| children =

| occupation =

}}

James Caven Mahaffy (August 29, 1905 – November 29, 1986) was a provincial level politician from Alberta, Canada. He served as a member of the Legislative Assembly of Alberta from 1940 to 1944. Mahaffy held a seat in the electoral district of Calgary as an Independent. Mahaffy briefly served as Leader of the Opposition.