| Club: | Real Oviedo |
| Season: | 2017–18 |
| Chairman: | Jorge Menéndez |
| Chrtitle: | President |
| Mgrtitle: | Head coach |
| Manager: | Juan Antonio Anquela |
| Stadium: | Carlos Tartiere |
| League Result: | 7th |
| Cup1: | Copa del Rey |
| Cup1 Result: | Second round |
| League Topscorer: | Miguel Linares (10) |
| Season Topscorer: | Miguel Linares (10) |
| Highest Attendance: | 25,996 (vs Sporting Gijón) |
| Lowest Attendance: | 10,312 (vs Reus Deportiu) |
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| Prevseason: | 2016–17 |
| Nextseason: | 2018–19 |
The 2017–18 season is the 35th season in Segunda División played by Real Oviedo, a Spanish football club based in Oviedo, Asturias. It covers a period from 1 July 2017 to 30 June 2018.
| No. | Name | Nat. | Place of Birth | Date of Birth (Age) | Signed From | Since | Transfer Fee | End |
|---|---|---|---|---|---|---|---|---|
| Goalkeepers | ||||||||
| 1 | Alfonso Herrero |  | Toledo | 21 April 1994 | Real Oviedo Vetusta | 2016 | Free | 2019 |
| 13 | Juan Carlos | | Calvià | 27 July 1987 | Albacete | 2016 | Free | 2018 |
| Defenders | ||||||||
| 2 | Diego Johannesson |  | Villaviciosa | 3 October 1993 | Real Oviedo Vetusta | 2011 | Free | 2019 |
| 3 | Francisco Varela | | Atarfe | 26 October 1994 | Betis | 2016 | Free | 2018 |
| 4 | Héctor Verdés | | Villar del Arzobispo | 24 June 1984 | Alcorcón | 2015 | Free | 2019 |
| 5 | Juan Forlín |  | Reconquista | 10 January 1988 |  Querétaro | 2017 | Free | 2019 |
| 6 | Carlos Hernández | | Jaén | 15 September 1990 | Lugo | 2017 | Free | 2019 |
| 18 | Christian Fernández | | Santander | 15 October 1985 | Las Palmas | 2016 | Free | 2018 |
| 19 | Nahuel Valentini |  | Rosario | 16 November 1988 | Spezia | 2017 | Free | 2019 |
| 20 | Guillermo Cotugno | | Montevideo | 17 March 1995 |  Rubin Kazan | 2017 | Free | 2019 |
| 23 | Mossa | | Valencia | 24 January 1989 | Gimnàstic | 2017 | Unknown | 2019 |
| Midfielders | ||||||||
| 7 | Aarón Ñíguez | | Elche | 26 April 1989 | Tenerife | 2017 | Free | 2019 |
| 8 | Ramón Folch | | Reus | 4 October 1989 | Reus | 2017 | Free | 2019 |
| 11 | Matej Pučko | Murska Sobota | 6 October 1993 | Koper | 2017 | Free | 2019 | |
| 15 | McDonald Mariga |  | Nairobi | 4 April 1987 | Latina | 2017 | Free | 2018 |
| 17 | Patrik Hidi |  | Győr | 27 November 1990 | Honvéd | 2017 | Free | 2019 |
| 21 | Saúl Berjón | | Oviedo | 24 May 1986 | UNAM | 2017 | Free | 2019 |
| 22 | David Rocha | | Cáceres | 7 February 1985 |  Houston Dynamo | 2016 | Free | 2018 |
| Forwards | ||||||||
| 9 | Toché | | Santomera | 1 January 1983 | Deportivo La Coruña | 2015 | Free | 2018 |
| 10 | Miguel Linares | | Zaragoza | 30 September 1982 | Recreativo | 2014 | Free | 2018 |
| 14 | Yaw Yeboah |  | Accra | 28 March 1997 | Manchester City | 2017 | Loan | 2018 |
| 16 | Diego Fabbrini | | San Giuliano Terme | 31 July 1990 | Birmingham City | 2017 | Loan | 2018 |
| 24 | Olmes García |  | Barranquilla | 21 October 1992 | América de Cali | 2018 | Loan | 2018 |
See main article: 2017–18 Segunda División.
See main article: 2017–18 Copa del Rey.
|-|colspan=12|Players who have left the club after the start of the season:
|-|colspan=14 align=left|Players who have left the club after the start of the season: