Jan Posthuma

{{short description|Dutch volleyball player (born 1963)}}

{{Use dmy dates|date=September 2023}}

{{Infobox volleyball biography

| name = Jan Posthuma

| image =

| image_size =

| caption =

| fullname = Jan Marcus Posthuma

| nickname =

| birth_date = {{birth date and age|1963|6|11|df=y}}

| birth_place = Dokkum, Friesland, Netherlands

| death_date =

| death_place =

| hometown =

| height = 209 cm

| teamnumber = 6 (1988)
13 (1992)
10 (1996)

| position = Middle blocker

| spike =

| block =

| teammates =

| nationalyears = 1987–1996

| nationalteam = {{vb|NED}}

| medaltemplates =

{{MedalSport | Men's volleyball}}

{{MedalCountry | the {{NED}} }}

File:Olympic rings.svg

{{MedalCompetition|Olympic Games}}

{{MedalGold | 1996 Atlanta | Team}}

{{MedalSilver | 1992 Barcelona | Team}}

{{MedalCompetition|World Championship}}

{{MedalSilver| 1994 Greece | Team}}

{{MedalCompetition|FIVB World Cup}}

{{MedalSilver|1995 Japan|}}

{{MedalCompetition|World League}}

{{MedalGold|1996 Rotterdam|}}

{{MedalCompetition|European Championship}}

{{MedalSilver|1993 Finland|}}

{{MedalBronze|1989 Sweden|}}

{{MedalBronze|1991 Germany|}}

}}

Jan Marcus Posthuma (born 11 June 1963) is a retired volleyball player from the Netherlands, who represented his native country in three consecutive Summer Olympics, starting in 1988 in Seoul.

After having won the silver medal in 1992, Posthuma won the gold medal in Atlanta (1996) with the Dutch Men's Volleyball National Team by defeating Italy in the final (3–2).