Mari Klaup

{{short description|Estonian heptathlete}}

{{Infobox sportsperson

| name = Mari Klaup

| image = 309 klaup ver (34808307660).jpg

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| nationality = Estonian

| sport = Track and field

| event = Heptathlon

| birth_date = {{Birth date and age|1990|02|27|df=yes}}

| birth_place = Tartu

| height =

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| country = {{flag|Estonia}}

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}}

Mari Klaup (born 27 February 1990) is an Estonian athlete who specialises in the heptathlon.{{cite web|url=http://www.iaaf.org/athletes/biographies/athcode=236475 |title=Mari Klaup |publisher=IAAF| accessdate=9 July 2016}} She competed in the heptathlon event at the 2016 European Championships in Amsterdam, Netherlands. At the 2013 World Championships in Moscow she was 21st.