Jan Klaasesz

{{short description|Dutch politician}}

{{Expand Dutch|topic=bio|date=October 2018}}

{{Infobox politician

| name = Jan Klaasesz

| image = Jan_Klaasesz_(1955).jpg

| caption = Jan Klaasesz in 1955

| office1 = Queen's Commissioner of South Holland

| term_start1 = 16 January 1956

| term_end1 = 1 March 1972

| predecessor1 = {{ill|Lodewijk Albert Kesper|nl}}

| successor1 = Maarten Vrolijk

| office2 = Governor-General of Suriname

| term_start2 = 2 December 1949

| term_end2 = 11 February 1956

| predecessor2 = Willem Huender

| successor2 = Jan van Tilburg

| birth_date = {{Birth date|df=yes|1907|2|5}}

| birth_place = IJlst, Netherlands

| death_date = {{death date and age|df=yes|1997|11|29|1907|2|5}}

| death_place = Voorschoten, Netherlands

| party = Labour Party

}}

Jan Klaasesz (5 February 1907 – 29 November 1997) was a Dutch politician for the Labour Party, who was Governor of Suriname between 1949 and 1956, and who was Queen's Commissioner of South Holland between 1956 and 1972.