Simón Berthold Chacón was a Mexican anarchist militant who acted as a commander of the Liberal Army during the Magonista rebellion of 1911 in Baja California.

Simón Berthold Chacón was born in Nacozari, Sonora, son of a German father and a Mexican mother.

On January 29, 1911, Berthold and José María Leyva took the town of Mexicali with a group of 30 guerrillas, marking the beginning of the Magonista rebellion of 1911.

At the end of February 1911, Berthold and Leyva informed the press that the objective of the campaign was to create an "independent socialist republic"[1] or a cooperative commonwealth in Baja California.

However, on the way back to El Álamo, Berthold was wounded in the leg by a bullet by Alberto Rodríguez (El cachora), a sniper of indigenous origin, to whom the Porfirians had supplied with a photograph of the PLM commander.