Ștefan Vlădoiu

{{short description|Romanian footballer}}

{{Use dmy dates|date=September 2016}}

{{Infobox football biography

| name = Ștefan Vlădoiu

| image =

| fullname = Ștefan Marinel Vlădoiu

| birth_date = {{Birth date and age|1998|12|28|df=yes}}

| birth_place = Alunu, Romania

| height = 1.78 m

| position = Defender

| youthyears1 = {{0|0000}}–2015

| youthclubs1 = Universitatea Craiova

| currentclub = Kolos Kovalivka

| clubnumber = 2

| years1 = 2016–2025

| clubs1 = Universitatea Craiova

| caps1 = 131

| goals1 = 1

| years2 = 2017–2018

| clubs2 = → Sportul Snagov (loan)

| caps2 = 49

| goals2 = 2

| years3 = 2019

| clubs3 = → Dunărea Călărași (loan)

| caps3 = 6

| goals3 = 0

| years4 = 2022–2023

| clubs4 = → Universitatea Cluj (loan)

| caps4 = 14

| goals4 = 0

| years5 = 2025–

| clubs5 = Kolos Kovalivka

| caps5 = 2

| goals5 = 0

| nationalyears1 = 2019–2021

| nationalteam1 = Romania U21

| nationalcaps1 = 3

| nationalgoals1 = 0

| pcupdate = 2 March 2025

| ntupdate =

}}

Ștefan Marinel Vlădoiu (born 28 December 1998) is a Romanian professional footballer who plays as a defender for Ukrainian Premier League club Kolos Kovalivka.{{cite web|url=https://sportuldoljean.ro/2019/01/08/liga-1-stefan-vladoiu-va-fi-imprumutat-la-calarasi-la-echipa-lui-dan-alexa-a-ajuns-si-calancea/|title=Liga 1: Ștefan Vlădoiu va fi împrumutat la Călărași. La echipa lui Dan Alexa a ajuns și Calancea|website=sportuldoljean.ro}}