The 2015–16 season was Newport County's third consecutive season in League Two and 63rd season in the Football League. The season covered the period from 1 July 2015 to 30 June 2016. It was their 95th season of league football and 27th since reforming in 1989. They finished the season in 22nd place. The club also participated in the FA Cup, League Cup and League Trophy, reaching Round 3 of the FA Cup for the first time since 1986.

Former England Manager Terry Butcher had been announced as manager in April, but his tenure lasted a mere ten games. During that spell County recorded only one win and seven losses, and lay rooted at the foot of the table. His replacement John Sheridan was announced on 2 October. Sheridan managed to get county out of the relegation places and up to 20th in the table by 12 January 2016 when he was poached by former club Oldham Athletic. He had enjoyed a ten-match unbeaten run between mid-October 20 and December 1, with an overall record of five wins, five defeats and seven draws from 17 games in charge. After three defeats and a draw in his last four games he left with County just three points above the relegation zone. Assistant manager Warren Feeney was announced as manager on 15 January. Feeney's tenure started with a win at York City, but he only managed another five wins in the rest of the season. County had risen as high as 17th in the table following the 3–0 win at Portsmouth and 0–0 draw home to Hartlepool United, but a disastrous spell of six straight defeats left them in 22nd place 11 points clear of relegation with 12 left to play for. A 1–1 draw with Oxford United combined with York's win at Portsmouth put County nine points ahead with nine to play for, but with an 11 superior goal difference. Any relegation doubts were extinguished by Newport's 1–1 draw at Luton. However the bad results continued for the remainder of the season and into the next, which ultimately cost Feeny his job. Newport lost the last two games of this season and failed to score a single goal, finishing in 22nd place.

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