The event, dating back to the 1800s, took place at Harrow Leisure Centre on March 30 and has previously been won by heavyweight superstar Anthony Joshua and Olympic talent Nicola Adams OBE.
There were seven bouts during the course of the evening, with winners moving on to the national championships including three west London fighters.
Brent councillor Zaffar Van Kalwala said after the event: “This was a fantastic event which showed young people at their best.
“I'm so proud of all their hard work and commitment and I truly believe they will go on to achieve great things for London and Great Britain."
One of the winners was Mason Smith from Kingsbury.
The 20-year-old remains one of the favourites after being selected by Team GB for the next Olympic trials for Tokyo 2020.
Harrow Elite Boxing is supported by the Wembley -based charity, Careys Foundation, which raises money for a range of causes.
The managing director for the Carey Group, Denis Deacy said: “Careys Foundation was delighted to sponsor the London Elite Boxing championship and be part of an event that is steeped in history.
“Congratulations to all the winners on the night.”
Also having their hands raised were Jack Brooker from Northolt and Kelvin Fawaz from Stonebridge.
The secretary of organisers London Boxing Terri Kelly said: “Well done to everyone who took part.
“The event showed London's amazing pool of talent and proved boxing offers young people more than just a physical activity.
“Boxing clubs often offer a safe haven for youngsters, guiding them in many areas of their lives."
This is not the first west London success in the ring, as Acton mixed martial artist Jimmy Wallhead made his debut in the big league last year.
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•Bantamweight - Louis Lynn (Nemesis) beat Prince Brady (West Ham)
• Lightweight - Jack Brooker (Northolt) beat Darren Ballinger (Islington)
• Light Welterweight - Elliot Whale (Nemesis) beat Louis Issacs (Lion)
• Welterweight - Lamin Conteh (Islington) beat Myles Cousins (West Ham)
• Middleweight - Kelvin Fawaz (Stonebridge) beat William Webber (Lion)
• Heavyweight - Viddal Riley (West Ham) beat Ben Vickers (Miguels)
• Super heavyweight - Courtney Bennett (Double Jab) beat Jeamie Tshikeva
(White Hart Lane)