||March 30, 1949
Peter Kienast (sometimes listed as Pieter Kienast; born March 30, 1949 in Ellbögen, Tyrol) is an Austrian bobsledder who competed during the 1980s. He won a silver medal in the four-man event at the 1986 FIBT World Championships in Königssee.
Competing in two Winter Olympics, Kienast earned his best finish of sixth in the four-man event at Calgary in 1988.
In the 1987-88 Bobsleigh World Cup, he tied for overall champion in the four-man event with fellow Austrian Ingo Appelt.