| Last Week Tonight with John Oliver | |
|---|---|
| Season 3 | |
 Promotional poster for the season | |
| No. of episodes | 30 |
| Release | |
| Original network | HBO |
| Original release | February 14 – November 13, 2016 |
| Season chronology | |
The third season of late-night talk and news satire television program Last Week Tonight with John Oliver originally aired between February 14, 2016, and November 13, 2016, 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 in season three. The season was generally well-received, winning four Emmy Awards, a Television Academy Honor, and one WGA Award. The show continued to release the main stories of each broadcast on its YouTube channel after each episode aired. Episodes in the season were credited with influencing US law and culture, a phenomenon dubbed the "John Oliver effect". Prominent instances include the main segment of episode three, titled "Donald Trump", which set an HBO viewership record and received widespread media attention; and the main segment of episode fourteen, about debt buyers, in which Oliver forgave almost $15 million in medical debt for 9,000 Americans.