Hollweg is a surname. Notable people with the surname include:
Ilse Hollweg (1922– 1990), German operatic coloratura soprano
Rebecca Hollweg (born 1964), English singer-songwriter
Ryan Hollweg (born 1983), American professional ice hockey forward
See also may refer to:
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