|Full name||Marc Navarro Ceciliano|
|Date of birth||2 July 1995|
|Place of birth||Barcelona, Spain|
|Height||1.88 m (6 ft 2 in)|
|Playing position||Right back|
|2013–2014||→ Damm (loan)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 16 May 2018|
Born in Barcelona, Catalonia, Navarro finished his graduation on loan at CF Damm, after representing CF Badalona, FC Barcelona and RCD Espanyol. In July 2014, he was assigned to the latter's reserve team in Segunda División B.
Navarro made his senior debut on 2 November 2014, coming on as a second half substitute for Rober Correa in a 1–2 away loss against Elche CF Ilicitano. His first goal came on 5 September of the following year, the winner in a 3–2 home success over FC Barcelona B.
On 22 December 2015, Navarro signed a one-year extension with the club, with his new contract running until June 2017. The following 4 January, however, he suffered a severe knee injury, being sidelined for six months.
Navarro made his first-team – and La Liga – debut on 21 January 2017, starting and scoring the last goal in a 3–1 home win against Granada CF and becoming the first youth graduate to achieve the feat since Raúl Tamudo in 1997. Eight days later, in his second appearance, he netted his team's second in a 3–1 defeat of Sevilla FC also at the RCDE Stadium.
On 30 January 2017, Navarro extended his contract until 2021, being definitely promoted to the first team the following campaign.
On 15 June 2018, Navarro joined Watford on a five-year deal for €2 million.
|Espanyol B||2014–15||Segunda División B||13||0||—||—||—||13||0|
|2015–16||Segunda División B||17||4||—||—||—||17||4|
|2016–17||Segunda División B||14||3||—||—||—||14||3|
- "El Espanyol tira de la cantera" [Espanyol go shopping in the youth setup] (in Spanish). La Segunda B. 10 July 2014. Retrieved 21 January 2017.
- "El Ilicitano vence al Espanyol B con trabajo y buen fútbol (2–1)" [Ilicitano defeat Espanyol B with hard word and good football (2–1)] (in Spanish). Tele Elx. 2 November 2014. Retrieved 21 January 2017.
- "3–2: El Espanyol B lleva de cabeza al Barça B" [3–2: Espanyol B get into Barça B's head]. Mundo Deportivo (in Spanish). 6 September 2015. Retrieved 21 January 2017.
- "Marc Navarro renueva una temporada" [Marc Navarro renews for one season] (in Spanish). RCD Espanyol. 22 December 2015. Retrieved 21 January 2017.
- "Grave lesión de Marc Navarro" [Serious injury of Marc Navarro] (in Spanish). RCD Espanyol. 4 January 2016. Retrieved 21 January 2017.
- "'Pericos' que vuelan" ['Budgies' that fly]. Marca (in Spanish). 21 January 2017. Retrieved 21 January 2017.
- "El Espanyol se ahorrará fichar a un lateral con Marc Navarro" [Espanyol will save the signing of a full back with Marc Navarro]. Sport (in Spanish). 21 January 2017. Retrieved 21 January 2017.
- "El Espanyol tiene nuevo ídolo: Fantástico Marc Navarro" [Espanyol have a new idol: Fantastic Marc Navarro]. Marca (in Spanish). 29 January 2017. Retrieved 29 January 2018.
- "El Espanyol renueva a Marc Navarro hasta 2021" [Espanyol renew Marc Navarro until 2021]. Diario AS (in Spanish). 30 January 2017. Retrieved 15 August 2017.
- "Marc Navarro, al Watford" [Marc Navarro, to Watford] (in Catalan). RCD Espanyol. 15 June 2018. Retrieved 15 June 2018.
- "Official: Navarro joins Hornets". Watford F.C. 15 June 2018. Retrieved 15 June 2018.
- Marc Navarro at BDFutbol
- Marc Navarro at Soccerway