Viotti is an Italian surname. Notable people with the surname include:
Giovanni Battista Viotti Italian composer Giulio Viotti, Italian painter Marcello Viotti, Swiss conductor (1954–2005) Maria Luiza Ribeiro Viotti, Brazilian diplomat Sérgio Viotti, Brazilian actor and director Sergio Viotti (footballer) (born 1990)
Other Carrozzeria Viotti Viotti International Music Competition Viotti Stradivarius Viotti Festival