Hollweg is a surname of German origin. Notable people with the surname include:
Alexander Hollweg (1936–2020), British painter and sculptor Ilse Hollweg (1922–1990), German operatic coloratura soprano Nikolaus Hollweg (1897–1923), Bavarian police officer, casualty of the Beer Hall Putsch Rebecca Hollweg (born 1964), English singer-songwriter Ryan Hollweg (born 1983), American professional ice hockey forward Uwe Hollweg (1937–2024), German entrepreneur and politician
See also August von Bethmann-Hollweg (1795–1877), German jurist and Prussian politician Joachim von Bethmann-Hollweg (1911–2001), German ice hockey player Theobald von Bethmann-Hollweg (1856–1921), German politician and statesman