The Netherlands Symphony Orchestra (Dutch: "Nederlands Symfonieorkest") is a Dutch symphony orchestra. The home of the orchestra is the Muziekcentrum in Enschede. The orchestra was previously known in Dutch as Orkest van het Oosten (literal translation "Orchestra of the East"), but in October 2011 changed its Dutch name to align with the English name. At the same time the Dutch abbreviation "OvhO" was replaced with "NedSym." Due to objections from the Amsterdam-based Netherlands Philharmonic Orchestra, the Enschede orchestra had to change its name again and from 2014 till 2019 was known as HET Symfonieorkest ("THE Symphony orchestra"). Internationally it keeps employing the name "Netherlands Symphony Orchestra".
As of September 2019, after fusion with the orchestra of Gelderland the name of the orchestra is "Phion, orkest van Gelderland & Overijssel" (Phion, orchestra of Gelderland & Overijssel).
Netherlands Symphony Orchestra performs about 75 concerts a year in Enschede, Hengelo, Zwolle and Deventer, as well as throughout the province of Overijssel and the Randstad. NedSym also serves as orchestra with the Dutch Touring Opera (Nederlandse Reisopera) for two productions a year and various provincial choirs.