Michael "Michi" Hayböck (German: [ˈmɪçaːʔeːl ˈhaɪbœk]; born 5 March 1991) is an Austrian ski jumper.

He took his first World Cup win on 6 January 2015 in Bischofshofen in the final event of the Four Hills Tournament 2014/15.

Hayböck competed for Austria in both individual men's ski jumping events at the 2014 Winter Olympics in Sochi, Russia.

At the Nordic World Ski Championships 2017 in Lahti, he won together with Stefan Kraft, Daniela Iraschko-Stolz, and Jacqueline Seifriedsberger the silver medal in the mixed team competition.

In the men's team competition he won bronze together with Stefan Kraft, Manuel Fettner, and Gregor Schlierenzauer.