Keanu Reeves is taking a DNA test to prove he's not the father of a Canadian woman's children.

The 'Matrix' actor denies ever meeting Karen Sala (46), who has filed a claim in an Ontario court claiming he is the father of at least one of her four adult children.

Reeves' lawyer Lorne Wolfson has advised the 45-year-old star to take a paternity test to "clear his name" and prove he is not the biological father of any of Sala's children — who are all in their mid-20s.

The actor will take the test in the next four weeks.

Sala is asking for R1.2-million per month in child support — retroactive from June 1988 — and R24-million a month in spousal support, retroactive from November 2006.

Outside the court room, she said: "This is not about revenge or an attack on his good character. It's about closure and getting some peace. This is a personal journey."

Sala is due back in court on 16 October.