Niels Lolk Helveg Petersen was a Danish politician. He was Minister of Foreign Affairs from 1993 to 2000, having previously held the role of Minister for Economic Affairs between 1988 and 1990. He was a Member of the Folketing for the Danish Social Liberal Party from 1966 to 1974, 1977 to 1993, and again from 1994 to 2011.

The Danish Social Liberal Party is a social-liberal political party in Denmark. The party was founded as a split from the Venstre Reform Party in 1905.