| Movie | 2009 | Alesha Dixon: Who's Your Daddy? | Self - Presenter | |
| Movie | N/A | The Windrush Generation | Self | |
| Movie | 2023 | Pride of Britain: A Windrush Special | Self | |
| Movie | 2016 | Absolutely Fabulous: The Movie | Alesha Dixon | |
| Movie | 2008 | Alesha: Look But Don't Touch | Herself | |
| Movie | 2002 | Party at the Palace: The Queen's Concerts, Buckingham Palace | Self | |
| Movie | 2020 | Gary Barlow's Night At The Museum | Self | |
| Movie | 2010 | A Concert for Heroes | Self | |
| Movie | 2017 | Who Shot Simon Cowell? | Party Guest | |
| Movie | 2008 | Happy Birthday Brucie! | Self - Performer | |
| Movie | 2011 | CBeebies Presents: Strictly Cinderella | Self | |
| TV Show | 1988 | This Morning | Self | 1 |
| TV Show | 1995 | Soccer AM | Self | 1 |
| TV Show | 2006 | The One Show | Self - Guest | 2 |
| TV Show | 2004 | Strictly Come Dancing | Self | 2 |
| TV Show | 2002 | Ant & Dec's Saturday Night Takeaway | Self - Guest Announcer | 1 |
| TV Show | 2001 | The Saturday Show | Self | 1 |
| TV Show | 2009 | Eurovision: Your Country Needs You | Self | 1 |
| TV Show | 2007 | The Alan Titchmarsh Show | Self | 3 |
| TV Show | 2009 | Tonight's the Night | | 2 |
| TV Show | 2009 | The Feelgood Factor | | 1 |
| TV Show | 2008 | Lily Allen and Friends | Self - Guest | 1 |
| TV Show | 2009 | Alan Carr: Chatty Man | Self | 1 |
| TV Show | 2002 | V Graham Norton | Self | 1 |
| TV Show | 2003 | Pepsi Smash | | 1 |
| TV Show | 1956 | Eurovision Song Contest | Self - Host | 3 |
| TV Show | 2009 | Let's Dance for Comic Relief | Self | 1 |
| TV Show | 2009 | The Justin Lee Collins Show | Self | 1 |
| TV Show | 2009 | Chris Moyles' Quiz Night | Self | 1 |
| TV Show | 2009 | Live from Studio Five | Self | 1 |
| TV Show | 2004 | Strictly Come Dancing | Self - Judge | 73 |
| TV Show | 2007 | Britain's Got More Talent | Self | 1 |
| TV Show | 2009 | Fearne And... | | 1 |
| TV Show | 2010 | The Michael Ball Show | Self | 1 |
| TV Show | 2007 | Britain's Got Talent | Self - Judge | 187 |
| TV Show | 2019 | The Lateish Show with Mo Gilligan | Self | 1 |
| TV Show | 2019 | RuPaul's Drag Race UK | Self - Guest Judge | 1 |
| TV Show | 2006 | The One Show | Self | 1 |
| TV Show | 2021 | Walk the Line | Self - Judge | 6 |
| TV Show | 2007 | The Graham Norton Show | Self | 2 |
| TV Show | 2019 | America's Got Talent: The Champions | | 7 |
| TV Show | 2014 | Duck Quacks Don't Echo | | 1 |
| TV Show | 2022 | Britain Get Singing | Themselves - Judge | 1 |
| TV Show | 1996 | Never Mind the Buzzcocks | Self | 4 |
| TV Show | 2022 | Britain Get Singing | Judge | 1 |
| TV Show | 2016 | Michael McIntyre's Big Show | Self - Interviewed Guest | 1 |
| TV Show | 2017 | The Russell Howard Hour | Self | 1 |
| TV Show | 2019 | The Greatest Dancer | Herself - Presenter | 18 |
| TV Show | 2007 | Australia's Got Talent | Self - Judge | 11 |
| TV Show | 2016 | John Bishop: In Conversation with... | Self | 1 |
| TV Show | 2019 | Britain's Got Talent: The Champions | Judge | 6 |
| TV Show | 2020 | Michael McIntyre's The Wheel | Self - Celebrity Contestant | 1 |
| TV Show | 2023 | Late Night Lycett | Self - Guest | 1 |
| TV Show | 2007 | Britain's Got Talent | Judge | 14 |
| TV Show | 2006 | America's Got Talent | Herself - Judge | 7 |
| TV Show | 2020 | Britain's Got Talent: Unseen | Judge | 16 |
| TV Show | 2010 | Good Luck Charlie | Herself | 1 |
| TV Show | 2006 | America's Got Talent | Self | 1 |
| TV Show | 2002 | Bo' Selecta! | Self | 1 |
| TV Show | 2005 | The Friday Night Project | Self | 1 |
| TV Show | 2025 | Comic Relief: Red Nose Day 2025 | Self | 1 |
| TV Show | 2024 | You Bet! | Self - Panellist | 1 |
| TV Show | 1980 | Children In Need | Self | 4 |
| TV Show | 2016 | Lip Sync Battle UK | Self | 1 |
