Arnaldo
Arnaldo is a given name. Notable people with the name include:
- Arnaldo Abrantes, Portuguese track and field sprinter
- Arnaldo Alonso, Paraguayan footballer
- Arnaldo André, soap-opera Paraguayan actor
- Arnaldo Andreoli, Italian gymnast who competed in the 1920 Summer Olympics
- Arnaldo Maria Angelini, Italian scientist, working with Italy's power generation
- Arnaldo Antunes, writer and composer from Brazil
- Arnaldo Baptista, Brazilian rock musician and composer
- Arnaldo Villalba Benitez, Paraguayan footballer
- Arnaldo Bonfanti, footballer
- Arnaldo Carli, Italian racing cyclist and Olympic champion
- Arnaldo Carvalho de Melo, Brazilian developer working on the Linux kernel
- Arnaldo Cézar Coelho, the first Brazilian to take charge of the FIFA World Cup final
- Arnaldo Cohen, Brazilian pianist
- Arnaldo da Silva, former Brazilian athlete
- Arnaldo de Oliveira Sales, GBM, OBE, JP, Chairman of the Hong Kong Olympic Academy
- Arnaldo Deserti, Italian water polo player
- Arnaldo Edi Lopes da Silva, Portuguese footballer of Guinea-Bissauan descent
- Arnaldo Espínola, Paraguayan footballer
- Arnaldo Faustini, Italian polar geographer, writer, and cartographer
- Arnaldo Ferraro, former Republican Party politician from Brooklyn, New York
- Arnaldo Forlani, Italian politician and 44th Prime Minister of Italy
- Arnaldo Freire, Brazilian guitarist, teacher, cultural producer and composer
- Mario Arnaldo Gómez, Honduran footballer
- Arnaldo Jabor, Brazilian film director, screenwriter and producer
- Arnaldo Ramos Lauzerique, Cuban independent economist
- Arnaldo Tamayo Méndez, the first Cuban citizen to travel into earth orbit
- Arnaldo Mesa, retired boxer from Cuba and Olympic silver medallist
- Arnaldo Momigliano KBE, Italian historian known for his work in historiography
- Arnaldo Ochoa, Cuban general executed after being found guilty of treason
- Arnaldo Ortelli, Swiss footballer and squad member for Switzerland in the 1934 FIFA World Cup
- Arnaldo Otegi, Basque politician, spokesman for the outlawed Abertzale Basque separatist party Batasuna
- Arnaldo Ouana, retired Mozambique international football player
- Arnaldo Pérez, former butterfly and freestyle swimmer from Puerto Rico
- Arnaldo Pambianco, Italian former professional road racing cyclist
- Arnaldo Pereira, Paraguayan footballer
- Arnaldo Pomodoro, Italian sculptor
- Javier Arnaldo Portillo, Honduran football player
- Arnaldo Orfila Reynal, Argentine chemist and academic
- Arnaldo Ribeiro, Roman Catholic Archbishop in Ribeirão Preto, Brazil
- Arnaldo Darío Rosado, activist for the independence of Puerto Rico from a very young age
- Arnaldo Salvi, Italian professional football player
- Arnaldo Santos, Puerto Rican reggaeton and rock producer, singer and guitarist
- Arnaldo Sentimenti, former Italian football player and coach
- Arnaldo Silva, former Portuguese footballer who played as midfielder
- Arnaldo Villalba, Paraguayan footballer
