Charles Thomson Ritchie, 1st Baron Ritchie of Dundee, was a British businessman and Conservative politician who sat in the House of Commons from 1874 until 1905 when he was raised to the peerage. He served as Home Secretary from 1900 to 1902 and as Chancellor of the Exchequer from 1902 to 1903.

The Secretary of State for the Home Department, more commonly known as the Home Secretary, is a senior minister of the Crown in the Government of the United Kingdom and the head of the Home Office. The position is a Great Office of State, making the home secretary one of the most senior and influential ministers in the government. The incumbent is a statutory member of the British Cabinet and National Security Council.