The fun-filled event packed with games and activities will take place at the tennis centre, in Chiswick, in partnership with Sports Impact, to celebrate another successful year's partnership.
More than 500 primary school children will battle it out for the chance to represent Hounslow at the Schools Games finals in Crystal Palace in July.
Around 125 teachers will also be involved in the three-hour programme which will see 628 mini matches played using 50 secondary school sports leaders to umpire on the day.
Dukes Meadows School's outreach tennis programme, which has been running for over three years, provides free tennis coaching to children in the borough teaching them the skills required to play the game.
Tennis director James Lenton said: “All children deserve the very best academic and physical education in their early year’s development, so the Dukes Meadows tennis schools programme is something I'm very proud of.
"The team at Dukes Meadows have helped so many primary school children in the borough of Hounslow have an amazing tennis physical educational, they would not otherwise experience.
"The Festival of Sport at Dukes Meadows is always one of the highlights of our year.
"Over 500 children participating in the sport I love so much, just at the peak of our tennis summer schedule in Great Britain."
Pete Lammas, PE and school sport specialist for Sport Impact, added: “It is an amazing day for all the children to be part of such a large competition using the brilliant facilities at Dukes Meadows.”