Walter Mazzarri
On 30 August 2016, Kenedy joined Watford on a season-long loan after having a bid accepted from Chelsea. On 26 September, he made his only appearance for the Hornets in a 2–0 away defeat against Burnley, replacing Roberto Pereyra with 15 minutes remaining. After struggling with injuries, manager Walter Mazzarri, confirmed that Kenedy had returned to Chelsea on 12 December after a disappointing loan spell.