Philip John Miles (1773–1845) was an English landowner, slave owner, merchant, shipowner, banker and politician from Bristol. Through his banking interests he found himself on the register of owners of slaves on plantations in Jamaica though only as mortgagee in possession in cases when his bank had taken possession of plantations through the default of their owners on mortgage payments. He left an estate of over £1.2 million (equivalent to £126,300,000 in 2021), making him the first recorded millionaire of Bristol.