| Club: | RCD Espanyol |
| Season: | 2017–18 |
| Manager: | Quique Sánchez Flores |
| Mgrtitle: | Head coach |
| Chairman: | Chen Yansheng |
| Chrtitle: | President |
| League: | La Liga |
| League Result: | 11th |
| Cup1: | Copa del Rey |
| Cup1 Result: | Quarter-finals |
| Stadium: | Cornellà-El Prat |
| League Topscorer: | Gerard (16) |
| Season Topscorer: | Gerard (19) |
| Prevseason: | 2016–17 |
| Nextseason: | 2018–19 |
| Pattern La1: | _espanyol1718h |
| Pattern B1: | _espanyol1718h |
| Pattern Ra1: | _espanyol1718h |
| Pattern Sh1: | _espanyol1718h |
| Pattern So1: | _espanyol1617h |
| Leftarm1: | 0000CC |
| Body1: | ffffff |
| Rightarm1: | 0000CC |
| Shorts1: | 1951FF |
| Socks1: | FFFFFF |
| Pattern La2: | _espanyol1718a |
| Pattern B2: | _espanyol1718a |
| Pattern Ra2: | _espanyol1718a |
| Leftarm2: | 111111 |
| Body2: | ffcccc |
| Rightarm2: | 111111 |
| Shorts2: | 0B2555 |
| Socks2: | 0B2555 |
| Pattern La3: | _espanyol1718t |
| Pattern B3: | _espanyol1718t |
| Pattern Ra3: | _espanyol1718t |
| Leftarm3: | 445544 |
| Body3: | 445544 |
| Rightarm3: | 445544 |
| Shorts3: | 445544 |
| Socks3: | 445544 |
During the 2017–18 season, RCD Espanyol participated in La Liga and the Copa del Rey.
| Date | Player | From | Type | Fee | Ref | |
|---|---|---|---|---|---|---|
| 23 May 2017 | Transfer | €1,000,000 | [2] | |||
| 24 May 2017 | Transfer | €1,500,000 | [3] | |||
| 30 June 2017 | Loan return | Free | [4] | |||
| 30 June 2017 | Loan return | Free | [5] | |||
| 30 June 2017 | Loan return | Free | [6] | |||
| 30 June 2017 | Loan return | Free | [7] | |||
| 30 June 2017 | Loan return | Free | [8] | |||
| 1 July 2017 | Promoted | |||||
| 7 July 2017 | Transfer | Free | [9] | |||
| 12 July 2017 | Transfer | €300,000 | [10] | |||
| Date | Player | To | Type | Fee | Ref | |
|---|---|---|---|---|---|---|
| 22 May 2017 | Transfer | €2,300,000 | [11] | |||
| 22 May 2017 | Unattached | Free | ||||
| 29 May 2017 | Transfer | €400,000 | [12] | |||
| 30 June 2017 | Loan return | Free | [13] | |||
| 5 July 2017 | Loan | Free | [14] | |||
| 13 July 2017 | Transfer | €100,000 | [15] | |||
| 20 July 2017 | Transfer | Free | [16] | |||
| 2 August 2017 | transfer | €2,500,000 | [17] | |||
| 17 August 2017 | Transfer | Free | [18] | |||
| 28 August 2017 | Transfer | Free | [19] | |||
|}
| Competition | Final position | |
|---|---|---|
| La Liga | 11th | |
| Copa del Rey | Quarter-finals |
See main article: 2017–18 La Liga.
See main article: 2017–18 Copa del Rey.
Last updated on 20 May 2018.
|-! colspan=14 style=background:#dcdcdc; text-align:center|Goalkeepers|-! colspan=14 style=background:#dcdcdc; text-align:center|Defenders|-! colspan=14 style=background:#dcdcdc; text-align:center|Midfielders|-! colspan=14 style=background:#dcdcdc; text-align:center|Forwards|-! colspan=14 style=background:#dcdcdc; text-align:center| Players who have made an appearance or had a squad number this season but have left the club|}
Accounts for all competitions. Last updated on 19 December 2017.
| No. | Pos. | Name | |||
| 3 | DF |  Aarón Martín | 4 | 0 | |
| 4 | MF | Víctor Sánchez | 5 | 0 | |
| 5 | DF |  Naldo | 1 | 0 | |
| 7 | FW | Gerard | 2 | 0 | |
| 9 | FW | Sergio García | 1 | 0 | |
| 10 | MF | José Manuel Jurado | 1 | 0 | |
| 11 | FW | Léo Baptistão | 1 | 0 | |
| 12 | DF | Dídac Vilà | 1 | 0 | |
| 15 | MF | David López | 6 | 0 | |
| 17 | MF | Hernán Pérez | 1 | 0 | |
| 18 | MF | Javi Fuego | 4 | 0 | |
| 20 | MF |  Pape Diop | 3 | 0 | |
| 22 | DF | Mario Hermoso | 3 | 1 | |
| 23 | MF | Esteban Granero | 3 | 0 | |
| 24 | DF | Sergio Sánchez | 1 | 0 | |
| 25 | MF | Sergi Darder | 3 | 0 |
Last updated on 19 December 2017.
| Number | Nation | Name | Matches Played | La Liga | Copa del Rey | Total | |
|---|---|---|---|---|---|---|---|
| 1 | | Pau | 16 | 4 | 0 | 4 | |
| 13 | | Diego López | 2 | 0 | 1 | 1 | |
| 35 | | Adrià López Garrote | 0 | 0 | 0 | 0 | |
| TOTALS | 4 | 1 | 5 | ||||