Antonia Margaret Ax:son Johnson (Swedish: [an'to?n?a ?aks?l?s?n 'ju?ns?n]; born 1943) is the fourth-generation head of the family company Axel Johnson AB, founded by her great-grandfather in 1873.
In 1982 she succeeded her father as chairman of the board for Axel Johnson AB, Sweden, and Axel Johnson Inc., Stamford, USA.
According to Forbes Antonia Johnson was the third richest Swedish billionaire in 2013.
As of March 2013 Forbes reported her net worth as $9.2B.