|Full name||Marcelo de Oliveira Santos|
|Date of birth||4 March 1955|
|Place of birth||Pedro Leopoldo, Brazil|
|Height||1.70 m (5 ft 7 in)|
|Playing position||Attacking midfielder|
|1979–1983||→ Botafogo (loan)||36||(6)|
|1983||→ Nacional (loan)|
|2003–2007||Atlético Mineiro (youth)|
|2008||Atlético Mineiro (assistant)|
|2008||Atlético Mineiro (interim)|
|2012||Vasco da Gama|
|* Senior club appearances and goals counted for the domestic league only|
Born in Pedro Leopoldo, Minas Gerais, he was known as Marcelo during his playing days, and was an Atlético Mineiro youth graduate. Promoted to the first team in 1972, he went on to play seven seasons for the club before joining Botafogo in 1979.
Oliveira represented Brazil at under-23 level during the 1975 Pan American Games. He was included in Osvaldo Brandão's list ahead of the 1975 Copa América, and made his debut for the full side on 30 July by starting in a 4–0 home routing of Venezuela.
After a period as a sports commentator on Rede Minas, Oliveira began his coaching career at first club Atletico's youth setup. In December 2007, he was named CRB manager.
In May 2008, Oliveira – who was acting as an assistant – was appointed interim manager of Atlético, replacing Geninho. After the arrival of Alexandre Gallo he returned to his previous duties, but as the latter was dismissed in July, he was appointed manager; he avoided relegation with the club, but was still released in December.
On 8 December 2009, after a spell at Ipatinga, Oliveira was appointed manager of Paraná. He was dismissed the following 3 October after a 6–1 loss to Portuguesa, and took over Coritiba on 18 November.
On 12 September 2012, Oliveira was named at the helm of Vasco, but was fired only two months later. On 3 December he was appointed Cruzeiro manager, and managed to win two consecutive Campeonato Brasileiro Série A titles.
On 2 June 2015, Oliveira was relieved from his duties, after being knocked out of the year's Copa Libertadores. Thirteen days later, he was named manager of Palmeiras, and won the 2015 Copa do Brasil.
Sacked on 10 March 2016, Oliveira returned to Atlético on 20 May. He managed to reach the finals of the 2016 Copa do Brasil, but after a defeat to eventual champions Grêmio in the first leg, he was fired.
On 25 July 2017 Oliveira returned to Coritiba, but left the club after failing to avoid relegation. On 22 June of the following year, he replaced Abel Braga at the helm of Fluminense, leaving on 29 November after being knocked out of the year's Copa Sudamericana and being threatened with relegation.
Marcelo Oliveira is married and is Roman Catholic.
- Atlético Mineiro
- Taça Minas Gerais: 1975, 1976
- Campeonato Mineiro: 1976, 1978, 1979, 1983
- Copa dos Campeões da Copa Brasil: 1978
- Campeonato Capixaba: 1984
- Brazil U23
- Campeonato Paranaense: 2011, 2012
- "Com base mineira, Seleção chegou perto da final" [With Minas Gerais-based team, Seleção came close to the final] (in Portuguese). CBF. 15 September 2015. Retrieved 22 June 2018.
- "RETROSPECTIVA 2008: centenário para ser esquecido pelo Galo" [RETROSPECTIVE 2008: centenary to be forgotten by Galo] (in Portuguese). Globo Esporte. 30 December 2008. Retrieved 22 June 2018.
- "Marcelo Oliveira é o novo técnico do Paraná Clube" [Marcelo Oliveira is the new manager of Paraná Clube] (in Portuguese). Tribuna PR. 8 December 2009. Retrieved 22 June 2018.
- "Marcelo Oliveira não comanda mais o Paraná Clube" [Marcelo Oliveira is no longer manager of Paraná Clube] (in Portuguese). Tribuna PR. 3 October 2010. Retrieved 22 June 2018.
- "Marcelo Oliveira é o novo técnico do Coritiba" [Marcelo Oliveira is the new manager of Coritiba] (in Portuguese). IG. 18 November 2010. Retrieved 22 June 2018.
- "Marcelo Oliveira deixa o Coritiba, e Marquinhos Santos assume o time" [Marcelo Oliveira leaves Coritiba, and Marquinhos Santos takes over] (in Portuguese). Globo Esporte. 6 September 2012. Retrieved 22 June 2018.
- "Marcelo Oliveira é o novo treinador do Vasco" [Marcelo Oliveira is the new manager of Vasco] (in Portuguese). CR Vasco da Gama. 12 September 2012. Retrieved 22 June 2018.
- "Após seis derrotas seguidas, Marcelo Oliveira deixa o comando do Vasco" [After six consecutive defeats, Marcelo Oliveeira leaves Vasco] (in Portuguese). Globo Esporte. 5 November 2012. Retrieved 22 June 2018.
- "Cruzeiro confirma Marcelo Oliveira como novo técnico" [Cruzeiro confirm Marcelo Oliveira as new manager] (in Portuguese). Terra. 3 December 2012. Retrieved 22 June 2018.
- "Bicampeão brasileiro, Marcelo Oliveira é demitido do Cruzeiro" [Two times champion of the Brasileiro, Marcelo Oliveira is fired from Cruzeiro] (in Portuguese). ESPN Brasil. 2 June 2015. Retrieved 22 June 2018.
- "Marcelo Oliveira é o novo técnico do Palmeiras" [Marcelo Oliveira is the new manager of Palmeiras] (in Portuguese). ESPN Brasil. 15 June 2015. Retrieved 22 June 2018.
- "Marcelo Oliveira não resiste a derrota em casa e é demitido pelo Palmeiras" [Marcelo Oliveira does not stand to home defeat and is fired by Palmeiras] (in Portuguese). Globo Esporte. 10 March 2016. Retrieved 1 April 2016.
- "Volta às origens: Marcelo Oliveira é o novo técnico do Atlético-MG" [Back to the origins: Marcelo Oliveira is the new manager of Atlético-MG] (in Portuguese). Globo Esporte. 20 May 2016. Retrieved 22 June 2018.
- "Marcelo Oliveira é demitido do Atlético-MG após derrota na final" [Marcelo Oliveira is fired of Atlético-MG after defeat in the final] (in Portuguese). Folha de S. Paulo. 24 November 2016. Retrieved 22 June 2018.
- "Marcelo Oliveira no Coxa" [Marcelo Oliveira at Coxa] (in Portuguese). Coritiba FBC. 25 July 2017. Retrieved 22 June 2018.
- "Marcelo Oliveira é o novo treinador do Fluminense" [Marcelo Oliveira is the new manager of Fluminense] (in Portuguese). Fluminense FC. 22 June 2018. Retrieved 22 June 2018.