Diego Marvin Biseswar (born 8 March 1988) is a retired professional footballer who played as an attacking midfielder or left winger.

After one season, Biseswar was asked to join the Feyenoord youth academy, a move he was happy to make: "I visited them a few times and was quickly convinced.

[5] However, later that year, Biseswar was suspended by the KNVB for a month after he "played in a competition match, under a different name, in the first team of an amateur club from Amsterdam but was quickly picked out during the game as player of Feyenoord.

[8] On 20 November 2005, Biseswar replaced the injured Ali Boussaboun in the 53rd minute in the Eredivisie away match against Roda JC.

[11] However, during a 1–1 draw against Ajax A1 on 18 February 2006, he was sent–off for his unprofessional behavior in the second half and after the match, Biseswar was banished from the first team for a month.

[14] A month later on 26 September 2007, he made another appearance for the side, also coming on as a late substitute, in a 3–0 win over FC Utrecht.

[19] Biseswar made his Heracles Almelo debut in the opening game of the season against FC Twente, where he came on as a substitute for Kai Michalke in early first half, then scored and set up two goals, in a 3–0 win, earning himself a Man of the Match award.

[24] Biseswar failed to make an impression and only played 11 Eredivisie matches for the club from Doetinchem, without scoring any goals.

[8] At the end of the 2007–08 season, De Graafschap was at one point keen on signing him permanently but decided not to, due to Feyenoord's asking price.

[27] Feyenoord failed to sell the youngster, but Biseswar made a good impression during pre-season and the early league matches.

[28] He made his first appearance for Feyenoord since returning from a loan spell from De Graafschap, starting the whole game, as they lost 2–0 loss against PSV Eindhoven in the Johan Cruyff Shield.

[31] However, Biseswar suffered an injury while warming up ahead of a match against HHC Hardenberg in the third round of the KNVB Cup and was sidelined for a month.

[50] On 30 January 2011, he returned to the starting lineup from injury, where he played 85 minutes, as Feyenoord lost 2–1 against FC Twente.

[54] In a 3–1 win over PSV Eindhoven on 24 April 2011, he played a role during the match when he set up two goals for Georginio Wijnaldum, who scored twice.

[57] It wasn't until on 2 October 2011 when he returned from injury, coming on as a substitute and playing 32 minutes, in a 3–0 loss against ADO Den Haag.

[58] However, upon returning from injury, Biseswar found his first team opportunities under the new management of Ronald Koeman and was placed on the substitute bench in the number of matches for the side.

[88] On 4 February 2015 against Altınordu in the Group Stage of the Turkish Cup, he captained the side for the first time and set up one of the goals, in a 3–0 win.

[90] He then helped the side finish first place in the TFF First League, earning the club ones again a spot in the Süper Lig.

[102] Biseswar then helped PAOK qualify for the UEFA Europa League Group Stage after beating Dinamo Tbilisi 5–0 on aggregate and set up one of the goals in the first leg.

[110] On 6 May 2017, the Dutch winger along with Pedro Henrique Konzen bagged the goals for Serbian manager Vladan Ivic's team, helping PAOK win the Greek Cup final with score of 2–1 against AEK Athens at Panthessaliko Stadium of Volos.

[116] Biseswar then received a red card for a second bookable offence at the last minutes, as PAOK lost 1–0 against rivals, AEK Athens on 5 November 2017.

[117] After returning to the first team from suspension, he scored his first goal of the season on 19 December 2017, in a 5–1 win over Aiginiakos in the group stage of the Greek Football Cup.

[121] He later helped the side overcome AEK Athens to lift the Greek Cup at the Olympic Stadium in Athens after an enthralling final ended in a 2–0 win for the Salonica club, as PAOK retain Greek Cup to wreck AEK's double dream.

[123] On 14 November 2018, he scored his first season goal in the Greek Cup as he cut to a shooting position outside of the penalty area, curling a wonderful effort past the outstretched grasp of Ergotelis goalkeeper Manolis Kalogerakis, in a 2–1 away win.

[129] On 7 April 2019, he scored his 7th goal in the League, a season record in his career so far, as the Dutch midfielder picking up possession in the left channel and skipping past the challenge of Mark Asigba before scoring with a measured, right-footed shot in a 3–0 home win game against Lamia in his club's rally to win the title after 34 years.

[130] On 21 April 2019, Dimitris Giannoulis was fouled in the penalty area and Biseswar stepped up to confidently slot home a Panenka style spot-kick from 12 yards, as PAOK finally ended their 34-year wait for a league title with a 5–0 win against relegated Levadiakos and win the Super League title.

[132] On 13 August 2019, he scored a brace in Johan Cruyff Arena in a 3–2 away loss against Ajax as PAOK went out 5–4 on aggregate after another thrilling encounter between the two teams in 2019–20 UEFA Champions League third qualifying round.

[137] On 19 January 2021 it was announced that Biseswar would move on loan to Apollon Limassol in the Cypriot First Division for the remainder of 2020-21 season.

[141] Biseswar played at the 2005 UEFA European Under-17 Football Championship in Italy, scoring a late group stage winner against Israel.

[146] Biseswar's team finished third after losing the semi-final against later winner Mexico U17 (0–4), but winning the third place play-off match against Turkey U17 (2–1).