Calum Leslie is a radio & TV presenter and journalist who's a familiar voice to millions of listeners every morning, broadcasting the news on the BBC Radio 1 Breakfast Show with Greg James.

He is one of the presenters for the network's ARIA-nominated flagship youth news programme, Newsbeat, and has co-presented Life Hacks and the Official Chart First Look on Radio 1. He has also presented Sunday Breakfast on BBC Radio 5 Live alongside Eleanor Oldroyd and the Newscast podcast for BBC Sounds.

In July 2024 Calum co-presented a BBC Three, BBC News Channel and BBC iPlayer streaming special for young voters called Voting For The First Time ahead of the UK general election. He did the same live from Washington DC in US Election 24: Time To Decide, previewing the US presidential vote. After the results, he also voiced the BBC iPlayer documentary What Happens When You Become US President.

The same year, Calum fronted the BBC iPlayer documentary Gay Marriage And Me, looking at the changes and challenges around equal marriage in the UK a decade on from the law first passing. He was a regular face co-presenting panel show Seven Days on the BBC Scotland channel and has also reported for Coronation: The UK Celebrates on BBC One and for BBC Two's flagship Newsnight programme.

Calum presented a two hour BBC iPlayer live stream from the finish line of Radio 1 DJ Jamie Laing's Red Nose Day ultra marathon challenge – reaching millions of viewers across TV and BBC News Online. He has also appeared as a contestant on BBC Two's The Weakest Link as part of a News and Current Affairs special.

Originally from Glasgow, he grew up in Livingston before starting his career at BBC Scotland. There he covered the Glasgow Commonwealth Games, the 2014 independence referendum and the 2015 general election. Calum went on to report live on Euro 2016, Champions League matches, FA Cup finals and World Cup qualifiers for Sky News Radio. He has also worked for BBC Radio 4's Today Programme.