Hanna Emilia Grobler (née Mikkonen, born 15 January 1981 in Ruovesi) is a Finnish high jumper.

She competed at the World Championships in 2005 and in 2009 without reaching the final.

She has won nine gold medals in Finnish National Championships, which is the most of all high jumpers in Finland.

Her personal best vault is 1.92 metres (national record until 2016), achieved in June 2005 in Tampere.^[1]