Marseille was due to be the venue before covid restrictions were tightened in France.
Twickenham will host the European Champions Cup and Challenge Cup Finals next month.
Ulster are in the running to reach the Challenge Cup decider, which will be held at 8pm on Friday 21st of May.
The Heineken Champions Cup final, which could involve Leinster, will be staged a day later, on Saturday 22nd of May at 4.45pm.
ANNOUNCEMENT 📣
— Heineken Champions Cup (@ChampionsCup) April 30, 2021
The iconic Twickenham Stadium will host the 2021 #HeinekenChampionsCup final with a limited number of fans permitted to attend 🤩
Details ➡️ https://t.co/naHHmlJQUA
Take a look back the glorious winning moments from the previous finals held at Twickenham 👇 pic.twitter.com/GrJB8zDuh1
Up to 10 thousand fans will be allowed in to see both games.
Marseille was due to showcase both finals, but it will be the host city for the 2022 deciders.
Third Time The Charm As Laois Claim Joe McDonagh Cup
Offaly Pupils Become Local Stars After Publishing Bestselling Book
Katie Taylor To Fight At Croke Park In September
Laois And Westmeath Set For Big Tests In Intermediate Camogie Championship
I Knew I Had To Play A Good Round To Win - Ella Cantwell
Mullingar Athletic And Clonaslee United To Clash In Combined Counties Cup Final
Shane Lowry And Rory McIlroy In Contention At Memorial Tournament
There's Serious Competition In The Laois Panel - Mark Dowling
Westmeath Ladies Look To Book All-Ireland Quarter-Final Spot
Alex Dunne Aiming For Big Weekend In Monaco
Offaly Camogie Captain Looking Forward To Kilkenny Clash
Shane Lowry In Action At Memorial Tournament
Laois Aiming To Make It Third Time Lucky In Joe McDonagh Cup Decider
Galway To Host Westmeath On Sunday June 14th
Second Round Draw Made For FAI Cup
Cian Reddy Keeps Up Unbeaten Professional Record
Westmeath Ladies Get Opening Win In All-Ireland Intermediate Championship
Athlone Town Knocked Out Of All-Island Cup
Limerick See Off Offaly In Senior Camogie Championship
Athlone Town Suffer Defeat Away To UCD In First Division