Denny Domingues Landzaat (born 6 May 1976) is a Dutch former professional footballer who is currently the assistant coach of Indonesia national team.

Landzaat was educated in Ajax's youth academy, but only played one league match for the club before moving on to have lengthy spells with MVV, Willem II and AZ.

[3] Landzaat joined Premier League club Wigan Athletic on 18 July 2006 for an undisclosed fee, thought to be £2.5 million.

He retired from professional football at the end of the season, having been a part of the team that helped Willem II back to the Eredivisie.

[12] In the summer 2016, he then took charge of the club's U17 squad and beside that, he also functioned as assistant manager under Danny Blind for the Netherlands national football team in an advisor role.

[16] One week later, he was appointed assistant manager of Henk ten Cate at Saudi Professional League club Al-Ittihad.

[17] On 19 June 2022, he was announced as the assistant manager under John van den Brom at Polish Ekstraklasa defending champions Lech Poznań.