Brassey is a surname. Notable people with the surname include:
Albert Brassey (1844–1918), British rower, soldier and Conservative politicianAnna Brassey (née Allnutt) (1839–1887), English traveller and writerBaron Brassey of Apethorpe (Northampton), title in the Peerage of the United KingdomBill Brassey, English bare-knuckle boxerEarl Brassey, title in the Peerage of the United KingdomHarold Brassey, British polo championHenry Brassey (1840–1891), British Member of ParliamentHenry Brassey, 1st Baron Brassey of Apethorpe (1870–1958), British Conservative politicianHugh Trefusis Brassey (1915–1990), British soldier and magistrateNathaniel Brassey Halhed (1751–1830), English Orientalist and philologistRobert Bingham Brassey (1875–1946), British Conservative Party politicianRowan Brassey (born 1956), New Zealand lawn bowls playerThomas Brassey (1805–1870), English civil engineering contractor and manufacturer of building materialsThomas Brassey, 1st Earl Brassey (1836–1918), British Liberal Party politicianThomas Brassey, 2nd Earl Brassey (1863–1919), editor of The Naval Annual