Hildegard Falck (née Janze on 8 June 1949) is a retired West German runner.

On 11 July 1971 Falck ran the 800 m in 1:58.5 minutes in Stuttgart, improving the world record of Vera Nikolic by two seconds.

She was the first woman to clock a time under two minutes if the unratified marks of Sin Kim Dan are discounted.

[3] Before turning to athletics, Falck studied to become a secondary school teacher and trained in handball and swimming.

In 1971, besides her 800 m world record, she won a gold medal in the 800 m at the European Indoor Championships and a silver in the 4 × 400 m relay at European Championships; she also helped Ellen Tittel, Sylvia Schenk and Christa Merten to break the 4 × 800 m world record.