Brook is a hamlet in the civil parish of Witley and Milford, in the Waverley district, in south-west Surrey, England.

It is in the far west of Wormley, beyond Sandhills with which it avoids being contiguous due to a narrow, partly woodland buffer.

On slightly lower slopes of the Greensand Ridge than to the south, Brook is almost wholly within the Surrey Hills area of outstanding natural beauty.

[2] Brook was the origin of the Woodworm cricket bat used by Andrew Flintoff and Kevin Pietersen in the 2005 Ashes winning series.

[4] Brook was home to Emily Williamson, co-founder of the RSPB, from 1912 to 1931, as well as Asif Zardari, and his wife the former Pakistan Premier Benazir Bhutto, who bought the Rockwood Estate in 1995.