|ABN AMRO World Tennis Tournament|
|Tour||ATP World Tour|
|Category||ATP World Tour 500|
|Surface||Hard - indoors|
|Draw||32S / 16Q / 16D|
|Prize money||€2,098,480 (2019)|
|Current champions (2019)|
|Doubles|| Pierre-Hugues Herbert|
The Rotterdam Open (also known by it sponsored name ABN AMRO World Tennis Tournament) is a professional men's tennis tournament played on indoor hard courts. It is part of the 500 series of the ATP World Tour and has been held annually at the Ahoy Rotterdam in Rotterdam, Netherlands.
The first Rotterdam Open tennis tournament was held in November 1972 and was won by Arthur Ashe. The following year the tournament was not organized because it switched to a March date. Originally the Rotterdam Open was an event of the World Championship Tennis circuit and in 1978 became part of the Grand Prix tennis circuit. Since 1990 it has been part of the ATP Tour.
Since 2004, former Dutch tennis player Richard Krajicek has been the tournament director.
A record 115,894 people attended the 2012 edition tournament when Roger Federer returned for the first time in seven years. This record was broken in 2018 when 120,000 fans attended after Federer accepted a wildcard into the event after a five year absence.
In the singles, Arthur Ashe (1972, 1975–76) and Roger Federer (2005, 2012 and 2018), hold the record for most titles with three, and Ashe co-holds with Stefan Edberg (1986–87), Nicolas Escudé (2001–02) and Robin Söderling (2010–11) the record for most consecutive titles with two. Federer (2001, 2005, 2012, and 2018) and Jimmy Connors (1978, 1981–82, and 1984) hold the record for most finals contested at four.
In the doubles, four-time winners Anders Järryd (1987, 1991, 1993, 1995) and Nenad Zimonjić (2009–10, 2012–13) co-hold the record for most titles, while Frew McMillan, with three straight wins (1974–76), holds the record for most back-to-back titles.
- 1972–1977 : WCT circuit
- 1978–1989 : Grand Prix circuit
- 1990–1999 : ATP World Series
- 2000–2008 : ATP International Series Gold
- 2009–current : ATP World Tour 500
- "Live Tennis Guide Rotterdam Open". Retrieved February 17, 2012.
- "Bomb Scare Ends Rotterdam Final". NY Times. March 19, 1984. Retrieved 27 March 2012.
- "ABN AMRO WTT History". Retrieved March 18, 2012.
- "Federer gewinnt ATP-500-Turnier in Rotterdam - NZZ". 18 February 2018. Retrieved 9 April 2018 – via NZZ.
- "Past winners from official site". Retrieved February 17, 2012.
- "scores retrieved form Worldwidetennisdatabase". Retrieved February 17, 2012.