Jens Kramer Mikkelsen (born 16 December 1951) was the Lord Mayor of Copenhagen for the Social Democratic Party from 1989 to 2004 and he is the longest-serving mayor in the City of Copenhagen. In 2004, Kramer became the CEO of the Ørestad Development Corporation (Ørestadsselskabet I/S) and the company merged with Copenhagen Harbor in 2007 where Kramer was appointed CEO of CPH City & Port where he served until 2018. Currently, Kramer is Director of Urban Development at Nordic Real Estate Partners (NREP) and he holds a number of board positions in various companies and NGOs.