Zain Silcott was born in Hackney and moved to Islington at the age of seven or eight. He had trials at West Ham, Crystal Palace and Barnet but wasn't accepted before joining Norwich at the age of 10. He moved to Chelsea's academy when he was at Under-13 stage. He has since played for England Under-15s.but has also represented Monsterrat. He is described as tall, skilful and with a high level of individual confidence, he likes to attack coming in off the left whether as a wing-back or a more advanced attacker,

He didn't play for Chelsea's first time and transferred to Bournemouth on 17th January 2025, making his senior debut on 25th January in the Premier League against Notts Forest. He made one further appearance in the FA Cup.

On 10th September 2025 he signed for Greek side Olympiacos..