| Last Week Tonight with John Oliver | |
|---|---|
| Season 4 | |
 Promotional poster for the season | |
| No. of episodes | 30 |
| Release | |
| Original network | HBO |
| Original release | February 12 – November 12, 2017 |
| Season chronology | |
The fourth season of late-night talk and news satire television program Last Week Tonight with John Oliver originally aired between February 12 and November 12, 2017, on HBO in the United States. The season was produced by Avalon Television and Sixteen String Jack Productions; the executive producers were host John Oliver, Tim Carvell, and Liz Stanton, with Paul Pennolino as director. Last Week Tonight aired on Sundays at 11 pm, and had a total of 30 episodes. The season was generally well received, winning four Emmy Awards, one GLAAD Media Award, one TCA Award, and one WGA Award. The show continued to release the main stories of each broadcast on its YouTube channel after each episode aired.