Belsize

Belsize could refer to:

• Belsize Park – also known as 'Belsize' – a neighbourhood in London, the United Kingdom
• Belsize (ward), a ward named after Belsize Park, London
• Belsize Lane, a street in Belsize Park
• Belsize Park Gardens, a street in Belsize Park
• Belsize House, historic house
• Belsize Road, a street in South Hampstead, London
• Belsize, Hertfordshire, a hamlet in Hertfordshire
• Belsize architects, a firm of architects based in Belsize Park, London
• Belsize Motors, a former automobile-manufacturing firm based in Manchester