Transfers
Recent player movements in and out of the squad
| Date | Player | From | To | Type |
|---|---|---|---|---|
| 04.07.2018 | Emanuele Giaccherini | Napoli | — | Free |
| 01.07.2018 | Pepe Reina | Napoli | AC Milan | Free |
| 01.07.2018 | L. Pavoletti | Napoli | Cagliari | € 12M |
| 01.07.2018 | Mário Rui | AS Roma | Napoli | € 5.5M |
| 01.07.2018 | R. Inglese | — | Napoli | N/A |
| 01.07.2018 | A. Anastasio | Parma | Napoli | N/A |
| 01.07.2018 | A. Ciciretti | — | Napoli | Free |
| 01.07.2018 | A. Grassi | — | Napoli | N/A |
| 01.07.2018 | N. Maksimović | — | Napoli | N/A |
| 01.07.2018 | Carlos Vinícius | — | Napoli | € 4M |
| 01.07.2018 | S. Verdi | Bologna | Napoli | € 25M |
| 01.07.2018 | A. Younes | Ajax | Napoli | N/A |
| 01.07.2018 | S. Luperto | Empoli | Napoli | N/A |
| 01.07.2018 | N. Contini | — | Napoli | N/A |
| 23.02.2018 | Hrvoje Milić | Olympiakos Piraeus | Napoli | Free |
| 31.01.2018 | Luigi Liguori | Napoli | — | Loan |
| 31.01.2018 | Emanuele Giaccherini | Napoli | — | Loan |
| 30.01.2018 | M. Prezioso | Napoli | — | Loan |
| 29.01.2018 | A. Romano | Napoli | — | Loan |
| 26.01.2018 | N. Maksimović | Napoli | — | Loan |
| 19.01.2018 | A. Anastasio | Napoli | Parma | Loan |
| 01.09.2017 | R. Inglese | Napoli | — | Loan |
| 31.08.2017 | Luigi D'Ignazio | Napoli | — | Loan |
| 31.08.2017 | I. Strinić | Napoli | Sampdoria | N/A |
| 31.08.2017 | R. Inglese | — | Napoli | N/A |
| 30.08.2017 | L. Pavoletti | Napoli | Cagliari | Loan |
| 12.08.2017 | A. Bifulco | Napoli | — | Loan |
| 03.08.2017 | S. Luperto | Napoli | Empoli | Loan |
| 02.08.2017 | N. Dumitru | Napoli | — | N/A |
| 27.07.2017 | A. Grassi | Napoli | — | Loan |
| 26.07.2017 | M. Prezioso | Napoli | — | Loan |
| 24.07.2017 | R. Insigne | Napoli | Parma | Loan |
| 23.07.2017 | J. Dezi | Napoli | Parma | € 2M |
| 18.07.2017 | Luigi Liguori | Napoli | — | Loan |
| 18.07.2017 | E. Gnahoré | Napoli | — | N/A |
| 18.07.2017 | A. Romano | Napoli | — | Loan |
| 18.07.2017 | A. Anastasio | Napoli | — | Loan |
| 18.07.2017 | L. Palmiero | Napoli | — | Loan |
| 18.07.2017 | G. Tutino | Napoli | — | Loan |
| 17.07.2017 | Antonio Negro | Napoli | — | Loan |
| 14.07.2017 | Diego Acunzo | Napoli | — | Loan |
| 13.07.2017 | Mário Rui | AS Roma | Napoli | Loan |
| 12.07.2017 | Luigi D'Ignazio | Napoli | — | Loan |
| 12.07.2017 | Antonio Granata | Napoli | — | Loan |
| 11.07.2017 | R. Maiello | Napoli | Frosinone | € 1.2M |
| 10.07.2017 | J. de Guzmán | Napoli | Eintracht Frankfurt | Free |
| 04.07.2017 | A. Ounas | — | Napoli | € 10M |
| 01.07.2017 | N. Dumitru | Nottingham Forest | Napoli | N/A |
| 01.07.2017 | A. Grassi | Atalanta | Napoli | N/A |
| 01.07.2017 | N. Maksimović | Torino | Napoli | € 20M |