Tõnu is an Estonian masculine given name, a version of Anthony.
People named Tõnu include:
Tõnu Aare (born 1953), musicianTõnu Aav (born 1939), actorTõnu Aru (born 1935), film directorTõnu Endrekson (born 1979), rowerTõnu Kaalep (born 1966), playwright, designer and criticTõnu Kalam, Estonian-American orchestral pianist and conductorTõnu Kaljuste (born 1953), conductorTõnu Kalvet (born 1970), journalist and politicianTõnu Kark (born 1947), actorTõnu Kauba (born 1952), physician and politicianTõnu Kilgas (born 1954), actorTõnu Laanemäe (born 1977), architectTõnu Laigu (born 1956), architectTõnu Lehtsaar (born 1960), psychologistTõnu Lepik (born 1946), long jumperTõnu Ling (born 1971), photographerTõnu Luik (born 1941), philosopherTõnu Maarand (born 1940), sculptorTõnu Mikiver (born 1943), actorTõnu Möls (born 1939), mathematician and biologistTõnu Naissoo (born 1951), composer and pianistTõnu Õim (born 1941), correspondence chess grandmasterTõnu Oja (born 1955), ecologistTõnu Oja (born 1958), actorTõnu Ojala (born 1969), journalistTõnu Õnnepalu (born 1962), poet and authorTõnu Ots (born 1941), psychologistTõnu Pedaru (born 1962), journalist and singerTõnu Prei (born 1950), journalist and entrepreneurTõnu Prima (1902–1992), clergymanTõnu Puu (born 1936), economistTõnu Raadik (born 1957), actor and composerTõnu Reim (1853–1938), horticulturistTõnu Runnel (born 1981), web designerTõnu Saar (born 1944), actorTõnu Samuel (born 1972), white hat hackerTõnu Sepp (born 1946), musician, teacher, instrument makerTõnu Seero (1957–1998), writer and journalistTõnu Tepandi (born 1948), actor and singerTõnu Tõniste (born 1967), sailorTõnu Toome (1949–2009), Estonian-Canadian lawyerTõnu Trubetsky (born 1963), punk musician, writer and anarchistTõnu Tuvikene (1952–2010), astrophysicict and mathematicianTõnu Viik (born 1939), astronomerTõnu Viik (born 1968), philosopherTõnu Walk (?–1898), first Estonian manor owner