Ulf Karl Erik Wakenius (born 16 April 1958)[1] is a Swedish jazz guitarist, known as a member of Oscar Peterson's last quartet from 1997.

[3] His albums for ACT Music include Notes from the Heart (2005), a tribute to Keith Jarrett with Lund and Johansson; Love Is Real (2008), Signature Edition 2 (2010), Vagabond (2012), and Momento Magico (2014).

Other contributions have been on Lisa Nilssons Små Rum (2001), Cæcilie Norbys First Conversations (2002), as well as recordings by Viktoria Tolstoy, Esbjörn Svensson, and Youn Sun Nah.

In 2006, he toured with his show In the Spirit of Oscar with Kjell Öhman on piano, Hans Backenroth on bass, and Joakim Ekberg on drums.

[1] With Guitars Unlimited With Hawk on Flight With Ray Brown With Caecilie Norby With Niels-Henning Ørsted Pedersen With Oscar Peterson With Youn Sun Nah With others