The interests of future generations and the associated concept of sustainable development are closely linked to Gro Harlem Brundtland. Through her leadership of the Brundtland Commission and the report Our Common Future, she is widely seen as the main person promoting ‘sustainable development’ as the key to resolving the world’s environmental, social, and economic development challenges. Her government was subsequently instrumental in adopting a provision to protect the interests of future generations in the Norwegian Constitution. Prior to these events, her government became the first in the world to appoint an Ombudsman for Children. The combination of these events illustrates the links between the issues of this chapter – in what ways and to what extent should and has the Norwegian Ombudsman for Children contributed to protection and promotion of the interests of future generations?