Hanna Klein (born 6 April 1993)[1] is a German middle- and long-distance runner. She won the gold medal in the 3000 metres at the 2023 European Indoor Championships and bronze for the 1500 metres at the 2021 European Indoor Championships. Klein finished fifth in the 1500 m at the 2022 European Championships. She took gold for the 5000 metres at the 2017 Universiade.
Klein won several German national titles outdoors and indoors (1500 m, 5000 m, 3000 m).
