|Full name||Efthymios Koulouris|
|Date of birth||6 March 1996|
|Place of birth||Skydra, Macedonia, Greece|
|Height||1.84 m (6 ft 0 in)|
|2015–2016||→ Anorthosis (loan)||22||(6)|
|2018–2019||→ Atromitos (loan)||28||(19)|
* Senior club appearances and goals counted for the domestic league only and correct as of 7 May 2019|
‡ National team caps and goals correct as of 22:19, 11 June 2019 (UTC).
Just before his 17th birthday,he scored the winning goal that gave PAOK the Super League U17 title. A year later, he broke Stefanos Athanasiadis' goalscoring record in the U20s. He also celebrated another title with them. His tally stopped at 25, as he then joined the senior team. On 13 February 2014 Koulouris made his debut with PAOK in the Greek Football Cup against Apollon Smyrnis; he managed to score two goals. An impressive start for one of Greece's greatest talents. During the 2013–14 season he made his league debut against Asteras Tripolis.
In summer of 2015, he signed a year contract with Cypriot First Division club Anorthosis, on loan from PAOK. On 28 October 2015, the 19 years' old midfielder rediscovered his goalscoring touch in style as he scored six and made one assist in Anorthosis' 9–0 hammering of Elpida Xylofagou in the Cypriot Cup. It was a night that Koulouris would never forget when he got his first goals for his club, specifically six goals in one match with his first coming from the penalty spot in the 22nd minute, nine minutes after Andreas Avraam opened the score for Anorthosis. Three minutes later Koulouris got his second, giving his team a three-goal advantage and putting the game beyond the visitors' reach. Koulouris completed his hat-trick five minutes into the second half and from then on the home team took their foot off the pedal for almost 20 minutes and added another three goals to his tally in the 73rd, 76th and 87th minute of the game. On 1 November 2015, he scored his first league goal in a 2–1 away win against Pafos. On 6 January 2016, he opened the score in a 2–1 home win against Anagennisi Deryneia for the 1st leg of the 2nd round of the Cup. He finished the season having 6 goals in the 2015–16 First Division and 13 goals in all competitions.
Return to PAOK
He returned to PAOK for the 2016–17 season. On 19 September 2016, he netted both goals in a 2–1 away win against Asteras Tripolis. He was elected MVP of the game. Koulouris made his most mature season of his career (32 appearances in all competitions), with yet another special accolade, as he earned teammates' appreciation as he was voted Players' Younger Player of the Year.
On September 29, 2017, Koulouris agreed to a contract extension with PAOK until the summer of 2021. On 10 December 2017, he scored in a 4–0 home win against rivals Panathinaikos. On 8 February 2018, he scored in a comfortable 3–1 away Greek Cup win against Atromitos in the 2017–18 Greek Cup, helping his club reach the semi-finals. It was his first goal in that season's competition.
On 4 July 2018, Atromitos and PAOK agreed terms for the loan move of Koulouris to the club, until the summer of 2019. On 26 July 2018, in his first official game, he scored against Dynamo Brest in a UEFA Europa League 2nd qualifying round 1st leg with a great shot outside the area sent the ball to the netting reducing to 4–3 keeping his club's hope for next round. On 25 August 2018, in his first Super League game for the 2018–19 season, he scored a brace sealing a 2–1 away win against rivals Panetolikos. Koulouris, is expected to provide the driving force for Atromitos to kick on after last season’s great success of a fourth-placed finish. On 16 September 2018 Koulouris scored the only goal of the game as Atromitos continued their promising start to the season with a 1–0 home win over 10-man Lamia at the Peristeri Municipal Stadium. On 25 September 2018, he scored in a 2–1 home loss Greek Cup game against PAS Giannina. On 7 October 2018, he scored with a header sealing a 1–0 home win game against PAS Giannina. On 22 October 2018, he scored a brace, including a late winner, in a dramatic 3–2 home win against Asteras Tripolis. Six days later he scored in a 2–2 away draw against Panionios. On 31 October 2018, he scored in a resounding 6–1 away Greek Cup win against Iraklis. After a week without playing in the match against PAOK as part of th loan agreement, Koulouris scored in a 2–0 away win against reigning Super League champions AEK Athens at a deserted Olympic Stadium. The young winger sealed the victory, stroking past Vasilis Barkas after a lovely combination play with Bruno on the counterattack in the last minute of the game. On 25 November 2018, he scored after he took the rebound from a shot of his teammate Azer Bušuladžić and José Sá's unstable save, giving the lead to his club in a 1–2 home win loss against rivals Olympiacos. On 9 December 2018, he scored a brace and gave an assist in an emphatic 4–2 home win against Aris Thessaloniki. On 9 January 2019, thanks to an impressive hat trick from the prolific Efthymis Koulouris, Atromitos made a commanding step towards the Greek Cup quarter-finals against Apollon Smyrnis. On 20 January 2019, he opened the scoring for Damir Canadi's team with his 12th goal of the season after five minutes, but he could not prevent the away loss from rivals Xanthi. On 27 January 2019, he opened the score in a 2–1 away loss against Lamia. On 31 January 2019, he opened the score in an away 1–1 draw against OFI. On 16 February 2019, he scored when captain Javier Umbides sent over a superb free-kick to score with a simple yet clinical finish past goalie Markos Vellidis in a 2–0 away win against PAS Giannina. On 3 March 2019, a penalty from the top flight's top scorer after 18 minutes helped the club to gain a 3–0 home win game against Panionios. On 31 March 2019, he opened the score in a 2–1 away loss against Olympiacos. On 14 April 2019, the 23-year-old striker scored his 18th goal of the season with a clinical finish from Bruno's pass to wrap up a deserved victory, helping his club locked up a fourth-placed finish in the 2018–19 Super League season with an impressive 2–0 away win over rivals Aris Thessaloniki at the Kleanthis Vikelidis Stadium.
On 17 April 2019, Koulouris is enjoying the season of his life in Atromitos, and with 24 goals so far, the young forward has become the highest scoring Greek striker among domestic clubs in 17 years. The last Greek footballer to score at least 24 goals in one single season was Demis Nikolaidis in the 2001–02 campaign. On 21 April 2019, scored in a 2–0 home win game against Panathinaikos.
Koulouris, who is on the books for PAOK but played on loan at Atromitos, became the first loanee from another Greek side to finish as the league's top goal scorer and the first Atromitos player to claim the honor. Since the establishment of the Super League, Koulouris is just the third Greek player to win the 'Golden Boot' after Nikos Liberopoulos (2007) and Kostas Fortounis (2016). At just 23 years, 1 month, and 29 days old, Koulouris is the 3rd youngest player in 60 years to claim the Greek top flight’s top scorer honor, after Mimis Papaioannou and Thanasis Intzoglou. 
On 22 June 2019, Toulouse confirmed his signing with this following statement: “The revelation of the last Greek season, Efthymios Koulouris, has signed a four-year contract with Toulouse Football Club. He will wear the purple jersey for the next four seasons. The new Toulouse striker will wear the number 20.” Reports have stated that Toulouse paid PAOK €3.2 million with an unspecified resale rate, in order to sign the international striker.
On 16 March 2018, he was called in the Greek national team from Michael Skibbe for the friendly match against Switzerland on 23 March 2018. On 23 March 2018, he made his debut with the Greek national team in a 1–0 home loss against Switzerland as a late substitute.
- Ευθύμης Κουλούρης!
- Σ«έξι» Ευθύμης Κουλούρης!
- Ήρωας στο 90' ο Κουλούρης
- Εκτός έδρας νίκη της Ανόρθωσης επί της Πάφου με 2-1
- ΠΑΟΚ με μέταλλο, 2-1 στην Τρίπολη τον Αστέρα
- "Καλύτερος νέος του ΠΑΟΚ ο Κουλούρης". www.sport24.gr. Retrieved 3 June 2017.
- "Ανανέωσαν με τον ΠΑΟΚ οι Πέλκας και Κουλούρης". www.sport24.gr. 29 September 2017.
- "Το πάρτι του Πέλκα στην καυτή Τούμπα, 4-0 ο ΠΑΟΚ τον Παναθηναϊκό". www.sport24.gr. 10 December 2017.
- "Πρόκριση με ρεκόρ, 3-1 ο ΠΑΟΚ τον Ατρόμητο". www.sport24.gr. 8 February 2018.
- "Ανακοίνωσε Κουλούρη και ο Ατρόμητος". www.novasports.gr. 15 July 2018.
- "Ντινάμο Μπρεστ-Ατρόμητος 4-3: Επέστρεψε από την κόλαση και ελπίζει". www.protothema.gr. 26 July 2018.
- "Ο killer του Περιστερίου (Παναιτωλικός-Ατρόμητος 1-2)". sportsroom.gr. 25 August 2018.
- "Πάλι με Κουλούρη ο Ατρόμητος, 1-0 τη Λαμία". www.sport24.gr. 16 September 2018.
- "Ατρόμητος - ΠΑΣ Γιάννινα 1-0: Με γκολ του Κουλούρη αήττητος και πρώτος ο Ατρόμητος". www.sport24.gr. 7 October 2018.
- "Ατρόμητος - Αστέρας 3-2: Πάλι στην κορυφή οι Περιστεριώτες". www.sport24.gr. 22 October 2018.
- "Πανιώνιος - Ατρόμητος 2-2: Έμειναν όρθιοι στις καθυστερήσεις οι φιλοξενούμενοι". www.sport24.gr. 28 October 2018.
- "Ηρακλής - Ατρόμητος 1-6: Χατ τρικ ο Κωτσόπουλος, "σίφουνας" οι Περιστεριώτες". www.sport24.gr. 31 October 2018.
- "ΑΕΚ - Ατρόμητος 0-2" (in Greek). www.gazzetta.gr. 11 November 2018.
- "O Ολυμπιακός... λυτρώθηκε στις καθυστερήσεις (Ατρόμητος - ΟΣΦΠ 1-2)" (in Greek). www.reader.gr. 25 November 2018.
- "Ατρόμητος - Άρης 4-2: Ματσάρα στο Περιστέρι, ξανά δεύτερη η αρμάδα του Κάναντι". www.sport24.gr. 9 December 2018.
- "Απόλλων Σμύρνης - Ατρόμητος 0-3". www.gazzetta.gr. 9 January 2019.
- "Ξάνθη - Ατρόμητος 2-1". www.gazzetta.gr. 20 January 2019.
- "Λαμία - Ατρόμητος 2-1". www.gazzetta.gr. 27 January 2019.
- "ΟΦΗ - Ατρόμητος 1-1". www.gazzetta.gr. 31 January 2019.
- "ΠΑΣ Γιάννινα - Ατρόμητος 0-2: Με Κουλούρη οδηγό για την Ευρώπη". www.sport24.gr. 16 February 2019.
- "Ατρόμητος - Πανιώνιος 3-0: Τριάρα και τρίτη θέση για την ομάδα του Περιστερίου". www.sport24.gr. 3 March 2019.
- "Ολυμπιακός - Ατρόμητος 2-1". www.gazzetta.gr. 31 March 2019.
- "Άρης-Ατρόμητος 0-2: «Κλείδωσαν» την τέταρτη θέση οι Περιστεριώτες!". www.gazzetta.gr. 14 April 2019.
- "Ελπίζει για την τρίτη θέση ο Ατρόμητος, νίκησε 2-0 τον Παναθηναϊκό". www.sport24.gr. 21 April 2019.
- "Ευθύμης Κουλούρης: Ο κορυφαίος Έλληνας σκόρερ τα τελευταία 17 χρόνια". www.sport24.gr. 27 April 2019.
- "Πρώτος σκόρερ της Σούπερ Λιγκ ο Κουλούρης – Πόνσε και Φορτούνης στην πρώτη τριάδα". www.sdna.gr. 5 May 2019.
- "Deal 7,2 εκατ. € για Κουλούρη". www.sport24.gr. 22 June 2019.