Herold Jansson

{{short description|Danish artistic gymnast}}

{{Infobox gymnast

| name = Herold Jansson

| image =

| alt =

| caption =

| full_name = Carl August Herold Jansson

| birth_date = {{Birth date|1899|11|13|df=yes}}

| birth_place = Copenhagen, Denmark

| death_date = {{Death date and age|1965|04|23|1899|11|13|df=yes}}

| death_place = Frederiksberg, Denmark

| discipline = MAG

| country = Denmark

| natlteam =

| show-medals = yes

| medaltemplates =

{{MedalSport|Men's artistic gymnastics}}

{{MedalCountry|{{DEN}}}}

{{MedalCompetition|Olympic Games}}

{{MedalGold|1920 Antwerp|Team, free system}}

}}

Carl August Herold Jansson (13 November 1899 – 23 April 1965) was a Danish gymnast and diver who competed in the 1920 Summer Olympics and in the 1924 Summer Olympics. He was born in Copenhagen and died in Frederiksberg.{{cite web|url=https://www.olympedia.org/athletes/46325 |title=Herold Jansson |work=Olympedia |access-date=28 June 2021}}

Jansson was part of the Danish team that won the gold medal in the gymnastics men's team, free system event in 1920. He also competed in the plain high diving competition and finished sixth. Four years later, he was eliminated in the first round of the 1924 plain high diving event.