|Full name||Dimitrios Konstantinidis|
|Date of birth||2 June 1994|
|Place of birth||Korinos, Greece|
|Height||1.73 m (5 ft 8 in)|
|Playing position||Right back|
|2014||→ Aiginiakos (loan)||20||(1)|
|2016–2017||→ Omonia (loan)||18||(0)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 7 October 2018|
Born in Korinos, Pieria, Konstantinidis started his career t the age of 14 in the youth ranks of after being spotted by the club's grassroots staff. He made his unofficial debut with the first team just having turned 16 years, against Partizan in a 2010 friendly game. Initially, Konstantinidis played as a right midfielder, but in the academies turned to be a fully right-back player.
On 26 August 2012, Konstantinidis made his league debut in a 1–0 home win against Panthrakikos. At the end of the season, he signed a five-year contract with the club. In the third UEFA Europa League qualifying round, he scored his first goal for his club, equalizing the score to send the club to the UEFA Europa League playoffs. In the 2012–13 season he made 18 appearances. In January 2014, he was given on loan to Aiginiakos before returning to PAOK after six months.
On 6 August 2015, Konstantinidis scored his first goal with the club in all competitions in a 1–1 away draw for UEFA Europa League third preliminary round against Spartak Trnava. On 10 December 2015, he assisted Robert Mak in a 0–1 defeat of Borussia Dortmund in the UEFA Europa League group stage, earning him a selection to the best UEFA Europa League squad of the week. On 20 December 2015, Konstantinidis suffered a cruciate ligament injury during Super League home game against Platanias keeping him out for the remainder of the season. He returned to PAOK for the 2017–18 season, without making a single appearance with the club in the first half of the season.
On 8 August 2016, Konstantinidis joined Cypriot club Omonia on a 12-month loan deal from PAOK. He made 20 appearances with the club. On 26 May 2017, the club announced that with the end of the season the player would leave.
In January 2018, Konstantinidis joined Serie B club Brescia rejecting a loan offer from financially struggling Panathinaikos. He joined manager Roberto Boscaglia's team as a free-agent, with the administration of the Greek Cup winners still keeping 30% of his rights in a future sale. 
- "Ο ΠΑΟΚ στα πλέι οφ του Europa League, 1-1 με Σπάρτακ Τρνάβα". 6 August 2015.
- "Δημήτρης Κωνσταντινίδης". paokfc.gr.
- "Borussia Dortmund 0-1 PAOK". 10 December 2015.
- "Στους κορυφαίους του Europa ο Κωνσταντινίδης του ΠΑΟΚ". 10 December 2015.
- "Konstantinidis suffers serious injury". 20 December 2015.
- "Στην Ομόνοια ο Κωνσταντινίδης". 8 August 2016.
- "Ολοκλήρωση συνεργασίας και ευχές για καλή συνέχεια στην καριέρα τους" (in Greek). AC Omonia. 4 June 2017.
- "Calciomercato | Brescia, dal Paok arriva il terzino Konstantinidis" (in Italian). gianlucadimarzio.com. 31 January 2018.
- "Πριν από έξι μήνες στον ΠΑΟΚ, τώρα στον Άρη ο Κωνσταντινίδης". www.sport24.gr. 19 July 2018.