Laine is Finnish and Estonian for "wave", and a surname in various languages. Laine as a surname originates in Finland, where it is the seventh most common surname. In Estonian, it is also a female given name. Notable people with the name include:
Laine Kallas (born 1942), Estonian runnerLaine Mägi (born 1959), Estonian actressLaine Mesikäpp (1917-2012), Estonian actress, singer, folk song collectorCélestin Lainé (1908–1983), a Breton nationalist and collaborator during the Second World WarCleo Laine (born 1927), an English jazz and pop singerDenny Laine (born 1944), an English musician, singer, songwriter, and guitaristEdvin Laine (1905–1989), a Finnish film directorEmma Laine (born 1986), a Finnish tennis playerFrankie Laine (1913–2007), an American singer, songwriter, and actorHelena LaineJanet-Laine GreenJarkko LaineJo Jo LaineJoseph Lainé (1768–1835), a French lawyer and politicianLari Laine (born Corrine Cole, 1937), an American model and actressLiliana Laine (born 1923), a French film actressMurray De-LainePapa Jack LainePatrik Laine (born 1998), Finnish ice hockey playerPaul LaineSkylar Laine (born 1994), an American singerTeemu Laine (born 1982), a professional Finnish ice hockey player