Holzer is a German and Ashkenazic Jewish surname. It may be a topographic surname meaning "forest dweller" or an occupational surname meaning "woodcutter" or "wood seller", or a toponymic surname for someone hailing from a place named Holz.[1] Notable people include:
- Adi Holzer (born 1936), Austrian artist
- Daniel Holzer (born 1995), Czech footballer
- Friedl Kjellberg (née Holzer; also Holzer-Kjellberg) (1905–1993), Austrian-born Finnish ceramist
- Hans Holzer (1920–2009), Austrian-American author and parapsychologist
- Harold Holzer (born 1949), American historian
- Jane Holzer (born 1940), American model and TV actress
- Jenny Holzer (born 1950), American artist
- Jerzy Holzer (1930–2015), Polish historian
- Johann Evangelist Holzer, (1709–1740), Austrian-German painter of Augsburg Rokoko
- Josef "Sepp" Holzer (born 1942), Austrian farmer, author and agricultural consultant
- Korbinian Holzer (born 1988), German ice hockey player
- Kristine Holzer (born 1974), American Olympic speed skater
- Marie Holzer (1874 -1924) Austrian writer and journalist.
- Patrick Holzer (born 1970), Italian alpine skier
- Ainhoa Holzer (born 2002), Swiss-Spanish basketball player