New York Islanders

de Haan turned professional during the 2011–12 AHL season, appearing in 56 games for the Bridgeport Sound Tigers. de Haan made his NHL debut with the Islanders that season, on December 15 against the Dallas Stars. De Haan was sent back to the AHL following his debut and was named to the 2012 AHL All-Star Team.^[5]

While playing 17 games for the Sound Tigers during the 2013–14 AHL season, de Haan also skated in 51 games for the Islanders, and scored his first career NHL goal against the Toronto Maple Leafs in a 5–3 victory on January 7. On July 15, 2014, the Islanders re-signed de Haan to a three-year, $5.9 million contract.^[6] de Haan became a regular on the Islanders blueline the following season, appearing in 65 games.

On August 2, 2017, the Islanders re-signed de Haan to a one-year, $3.3 million contract. The two sides were set for an arbitration meeting that afternoon, with the deal being completed in the morning.^[7] During the season, de Haan suffered a lower body injury in a game against the Los Angeles Kings and was ruled out indefinitely for the rest of the season.^[8] de Haan missed the rest of the 49 games recovering from the required surgery.

Carolina Hurricanes

On July 3, 2018, de Haan signed a four-year, $18.2 million contract with the Carolina Hurricanes.^[9] In his first season with the club in 2018–19, de Haan strengthened a dynamic Hurricanes blueline, adding 1 goal and 13 assists in 74 regular season games. Helping Carolina return to the post-season for the first time in 10 years, he appeared in a career high 12 playoff games in reaching the Eastern Conference Finals.

Chicago Blackhawks

On June 24, 2019, de Haan's tenure with the Hurricanes ended as he was traded along with Aleksi Saarela to the Chicago Blackhawks in exchange for Gustav Forsling and Anton Forsberg.^[10] However, he played a mere 29 games the following year before undergoing season-ending surgery on his right shoulder.^[11]

Return to Carolina

As a free agent at the conclusion of his contract with the Blackhawks, de Haan remained un-signed over the summer. Prior to the 2022–23 season, de Haan returned to the Hurricanes organization initially on a tryout basis before signing a one-year, $850,000 contract on October 2, 2022.^[12]

Tampa Bay Lightning

On July 2, 2023, de Haan signed a one-year, $775,000 contract as a free agent with his fourth NHL club, the Tampa Bay Lightning, for the 2023–24 season.^[13]