Tiaguinho or Thiaguinho is a Portuguese name derived from Tiago or Thiago, meaning little Tiago or Tiago junior, and may refer to:
- Thiaguinho (singer) (born 1983), born Thiago André Barbosa, Brazilian singer
Footballers
edit- Thiaguinho (footballer, born 1984), born Thiago Rocha da Cunha, Brazilian defensive midfielder
- Thiaguinho (footballer, born 1985), born Thiago Silva de Paiva, Brazilian attacking midfielder
- Thiaguinho (footballer, born 1987), born Thiago Benevides Gonçalves, Brazilian winger
- Thiaguinho (footballer, born 1989), born Thiago Ribeiro dos Santos, Brazilian wingback
- Thiaguinho (footballer, born 1990), born Thiago dos Santos Menezes, Brazilian forward
- Thiaguinho (footballer, born 2000), born Thiago de Oliveira Silva, Brazilian attacking midfielder
- Thiaguinho (footballer, 1994–2016), born Tiago da Rocha Vieira, Brazilian forward
- Tiaguinho (futsal player) (born 1998), born Tiago André Santos Fernandes, Portuguese futsal player
- Thiaguinho (footballer, born 1998), born Wytalo Thiago de Assis Lima, Brazilian striker