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Mark Klaassen

b. 1973

American lawyer

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About Mark Klaassen

Born 1973. Mark Klaassen is an American lawyer.

United States Attorney for the District of Wyoming

On August 3, 2017, Donald Trump nominated Klaassen to be United States Attorney for the District of Wyoming. He was confirmed by the United States Senate by voice vote on November 9, 2017, and sworn into office on November 21, 2017. He resigned on January 31, 2021.

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Important facts

Birth century
Occupation
Nationality
Education
Notre Dame Law School, Oral Roberts University
Also known as
Mark Allen Klaassen

People in Mark Klaassen's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Mark Klaassen's

Frequently asked questions

Who is Mark Klaassen?

American lawyer

When was Mark Klaassen born?

Mark Klaassen was born on 17 April 1973 in Gillette.

What is Mark Klaassen's occupation?

Mark Klaassen is a lawyer.

What nationality is Mark Klaassen?

Mark Klaassen is American.

Sources & further reading

· Wikipedia: Mark Klaassen

· Wikidata: Q42351529

· DBpedia: Mark Klaassen

Cite this page

APA: Biography.guide. (2026). Mark Klaassen. https://biography.guide/mark-klaassen/

MLA: "Mark Klaassen." Biography.guide, https://biography.guide/mark-klaassen/.

Chicago: "Mark Klaassen." Biography.guide. https://biography.guide/mark-klaassen/.

Data last updated: 2026-09-20 · Spot an error? Report a correction.

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