Who are the youngest leaders of a party in parliament?

A black and white portrait of a man wearing a dark suit, white shirt and dark tie. He has dark hair and a short beard and moustache.

Chris Watson.

 NAA: A1200, L11176A

Chris Watson.

A black and white portrait of a man wearing a dark suit, white shirt and dark tie. He has dark hair and a short beard and moustache.

 NAA: A1200, L11176A

Description

This photograph is an official portrait of Australia's third Prime Minister, Chris Watson.

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Thanks for your question Max!

In the current Australian Parliament, the youngest leader of a political party is Adam Bandt MP. He was born in 1972 and leads the Australian Greens party.

The youngest Prime Minister was Chris Watson (Australian Labor Party) who was 37 years old when he became Prime Minister in 1904.