Filofax is a company based in Scotland that produces a range of personal organiser wallets.

The design originated at Lefax, a United States company from Philadelphia which was exporting products to the UK.

The company also markets a range of personal leather goods and luggage under the "Filofax" brand.

A range of insert page formats are sold, including calendars, notesheets, password lists and a thin calculator.

In the early 1990s it moved its offices to central London, near Oxford Street, and subcontracted its warehouse operation to Crick in Northamptonshire.