Original Adidas trainingsshirt AFC Ajax 2019/20

During the 2019–20 season, Ajax participated in the Eredivisie, the KNVB Cup, the UEFA Champions League, the UEFA Europa League and the Johan Cruyff Shield.

Due to the COVID-19 pandemic, on 21 April, Dutch Prime Minister Mark Rutte announced that events that require a permit are forbidden until 1 September. This meant that football matches were also not allowed, resulting in the end of the 2019–20 Eredivisie season. As a result, the KNVB decided on 24 April to maintain the current league positions but not to appoint a champion. Since Ajax was in first place on 8 March (after the last completed round), it was awarded the highest 2020–21 UEFA Champions League spot without being crowned as national champion.