Mark Willadsen

{{short description|American politician}}

{{Infobox officeholder

|name = Mark Willadsen

|image =

|caption =

|office = Member of the South Dakota House of Representatives from the 11th district

|term_start1 = January 13, 2015

|term_end1 = January 10, 2023

|predecessor1 = Christine Erickson
Jim Stalzer

|successor1 = Brian Mulder

|term_start2 = January 11, 2011

|term_end2 = January 8, 2013

|predecessor2 = Todd Schlekeway
Darrell Solberg

|successor2 = Christine Erickson
Jim Stalzer

|term_start3 = January 11, 2005

|term_end3 = January 13, 2009

|predecessor3 = Keri Weems
Rebekah Cradduck

|successor3 = Todd Schlekeway
Darrell Solberg

|birth_name =

|birth_date = {{Birth date and age|1955|2|17}}

|birth_place = Sioux Falls, South Dakota, U.S.

|party = Republican

}}

Mark Willadsen (born February 17, 1955) is an American politician who served in the South Dakota House of Representatives from the 11th district from 2015 to 2023. He previously served in the South Dakota House of Representatives from 2005 to 2009 and from 2011 to 2013.{{cite web|url=https://sdlegislature.gov/Legislators/Legislators/MemberDetail.aspx?Session=2019&Member=1621&Cleaned=True#divBills |title=SDLRC - Representative Mark Willadsen - 2019 |publisher=Sdlegislature.gov |access-date=2019-06-10}}{{cite web|url=https://www.argusleader.com/story/news/politics/2016/10/27/meet-candidates-district-11/91493630/ |title=Meet the candidates: District 11 |publisher=Argusleader.com |date=2016-10-27 |access-date=2019-06-10}}