Kadour Ziani from Algeria is 5′ 10″. In The Perfection Point: Sport Science Predicts the Fastest Man, the Highest Jump, and the Limits of Athletic Performance, the authors report that Kadour has a standing vertical jump of 60″.
For purposes of comparison, check out Adrian Wilson getting a 66″ hurdle jump off of 3 steps.
Or these box jumps by Ryan Moody. Note the 56″ standing jump on to a platform is a Guinness World Record.
OK – One more just for fun. With a bit of a run up, Cameron Wake pulls a cool thirty dollars off of an 11′ 8″ ceiling.