Else Lilly "Lilli" Andersen (later Svanberg, December 6, 1914 – January 24, 1988) was a Danish freestyle swimmer who competed in the 1932 Summer Olympics.

She was born in Sankt Jørgensbjerg, Roskilde and died in Oscar Parish, Stockholm.

In 1932 she was eliminated in the semi-finals of the 400 metre freestyle event.

She also participated in the 100 metre freestyle competition but was eliminated in the first round.

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