Costinha is a Portuguese nickname. It may refer to:

• Costinha (humorist) (1923–1995), born Lírio Mário da Costa, Brazilian actor and showman
• Paulo Costinha (born 1973), former Portuguese football goalkeeper
• Costinha (born 1974), born Francisco José Rodrigues da Costa Júnior, former Portuguese football midfielder
• Costinha (footballer, born 1992), born João José Pereira da Costa, Portuguese football forward
• Costinha (footballer, born 1994), born Pedro Miguel Neves da Costa, Portuguese football defender
• Costinha (footballer, born 2000), born João Pedro Loureiro da Costa, Portuguese football rightback