Peter Lambert

Peter Lambert may refer to:


 * Peter Lambert (baseball) (born 1997), American baseball pitcher
 * Peter Lambert (brigadier) (contemporary), Australian army officer and defence scientist
 * Peter Lambert (Gaelic footballer) (fl. 1991–2003), retired Irish sportsperson
 * Peter Lambert (rosarian) (1859–1939), German rosarian
 * Peter Lambert (rower) (born 1986), British rower