Niels Poul "Tist" Nielsen (25 December 1891 – 9 August 1962) was a Danish football player, who is the joint all-time best goalscorer for the Danish national team with 52 goals from only 38 matches, averaging 1.37 goals per match.
He won a silver medal with the Danish team at the 1912 Summer Olympics.
He played his career as a Striker for Kjøbenhavns Boldklub, with whom he won six Danish football championships.
In Canada, he played for CNR Montreal and won a Dominion of Canada Championship in 1929.