James William Lowther, 1st Viscount Ullswater,, was a British Conservative politician. He was Speaker of the House of Commons between 1905 and 1921. He was the longest-serving Speaker of the 20th century.
- Occupation
- politician, barrister
- Position held
- Member of the Privy Council of the United Kingdom, member of the 31st Parliament of the United Kingdom, member of the 30th Parliament of the United Kingdom, member of the 29th Parliament of the United Kingdom
- Citizenship
- United Kingdom
- Born
- April 1, 1855