Hopp lost 3–1 to Benito van de Pas in the first round of the 2016 World Championship. He couldn't qualify for the UK Open, but at the fourth Players Championship he reached his first quarter-final in a year by seeing off Mensur Suljović 6–2. Hopp then lost by a reversal of this scoreline to Gerwyn Price. He claimed the fifth Development Tour title with a 4–2 victory over Steve Lennon. At the European Darts Matchplay, Hopp beat Joe Murnan 6–5, Ian White 6–2 and Terry Jenkins 6–3 to progress through to his first European Tour quarter-final, where he was defeated 6–4 by Peter Wright. He got to the second round of the European Championship by eliminating Benito van de Pas 6–4, but was heavily defeated 10–3 by James Wade. His World Youth title qualified Hopp for his first Grand Slam of Darts where he was beaten 5–4 by Brendan Dolan and defeated Martin Adams 5–2, but a 5–1 loss to Michael van Gerwen would see him finish third in Group A and exit the tournament.