Denso Kasius (born 6 October 2002) is a Dutch professional footballer who plays as a defender for Eredivisie club AZ.

In January 2021, Kasius joined FC Volendam on loan.

[3] On 26 January 2023, Kasius joined Austrian Bundesliga club Rapid Wien on loan until the end of the season.

[4] On 3 July 2023, Kasius signed a 4-year deal to join AZ Alkmaar.

This biographical article related to association football in the Netherlands, about a defender, is a stub.