Mikkel Bjerg (born 3 November 1998 in Copenhagen) is a Danish cyclist, currently riding for UCI Professional Continental team Hagens Berman Axeon. Bjerg won the under-23 individual time trial at the UCI Road World Championships in 2017 and 2018 – becoming the first rider to win multiple under-23 time trial world titles. He is the current (as of 2019) holder of the Danish hour record.