Ilham Udin Armaiyn (born 10 May 1996) is an Indonesian professional footballer who plays as a winger for Liga 1 club Barito Putera and the Indonesia national team.

On 2 December 2017, Ilham signed a one-year contract with Malaysia Super League club Selangor on a free transfer, alongside with his national teammates Evan Dimas. He made his first-team debut for Selangor after starting the 2018 Malaysia Super League match against Kuala Lumpur F.A. on 4 February 2018, in which Selangor won 0-2. But, in the 66th minute, Ilham was tackled from behind by one of the opposition’s players. He was then unable to continue the match and eventually replaced in the 71st minute.