Åsa M. Waldau (Swedish pronunciation: [ˈǒːsa maˈrǐːa ˈvǎldaʊ]; born October 26, 1965) is the former leader of a Christian sect in Knutby, Sweden, that disbanded in 2016.

She then moved to Knutby, where she lived with the Waldau family, whose young son Patrik (born 1975) she had befriended in Uppsala.

[citation needed] She traveled widely in Swedish Pentecostal communities, and induced many young people to move to Knutby.

She was born again, and entered the Pentecostal tradition, but she also underwent influences from Ulf Ekman and his Livets Ord movement and from Word of Faith.

As the self-proclaimed "Bride of Christ", Waldau expected that she would be taken away before the Rapture, in a manner reminiscent of the dormition of the Virgin or the assumption of Mary, to be united with her Bridegroom.

In December she appeared on a discussion panel at the celebration of 175 year Aftonbladet, introduced there by Jan Guillou as Sweden's most maligned person in modern times.

In June 2006, the talk-show host Lennart Persson invited Waldau to his last installment of Debatt on national television, where she got into exchanges with Janne Josefsson and with Bert Karlsson.

In October 2007 he published Waldau's autobiography, Kristi brud: vem kan man lita på?

[10] In April 2021, HBO Europe premiered Swedish-American docuseries, Pray, Obey, Kill, investigating the January 2004 Knutby murder.