Antoine Lavoisier (1743–1794) was a French chemist.
Lavoisier may also refer to:
People Marie-Anne Paulze Lavoisier (1758–1836), French chemist, wife and collaborator of Antoine Lavoisier Lavoisier Freire Martins (born 1974), Brazilian futsal goalkeeper Lavoisier Maia (1928–2021), Brazilian physician and politician
Other Lavoisier (crater), a lunar crater Lavoisier Group, an organisation based in Australia Lavoisier Island, a sub-Antarctic island Lavoisier Medal, a chemistry award