Bjarni Mark Antonsson

{{Short description|Icelandic footballer (born 1995)}}

{{icelandic name|Bjarni|male}}

{{Infobox football biography

| name = Bjarni Mark Antonsson

| fullname =

| image =

| birth_date = {{birth date and age|df=yes|1995|12|27}}

| birth_place = Iceland

| height = 1.85 m{{WorldFootball.net|bjarni-antonsson}}

| position = Midfielder

| currentclub = Valur

| clubnumber = 6

| youthyears1 = –2011 | youthclubs1 = KF

| youthyears2 = 2011–2014 | youthclubs2 = KA

| years1 = 2014–2015

| clubs1 = KA

| caps1 = 2

| goals1 = 0

| years2 = 2015

| clubs2 = → Fjarðabyggð (loan)

| caps2 = 19

| goals2 = 2

| years3 = 2016–2017

| clubs3 = Kristianstad FC

| caps3 = 38

| goals3 = 4

| years4 = 2018

| clubs4 = KA

| caps4 = 22

| goals4 = 1

| years5 = 2019–2021

| clubs5 = IK Brage

| caps5 = 57

| goals5 = 5

| years6 = 2022–2024

| clubs6 = Start

| caps6 = 43

| goals6 = 4

| years7 = 2024-

| clubs7 = Valur

| caps7 = 19

| goals7 = 1

| nationalyears1= 2020–

| nationalcaps1= 3

| nationalgoals1= 0

| nationalteam1= Iceland

| pcupdate = 2 November 2024

| nationalteam-update = 18 March 2023

}}

Bjarni Mark Antonsson (born 27 December 1995) is an Icelandic footballer who plays as a midfielder for Valur.{{Soccerway|bjarni-antonsson/307198}}

The son of Mark Duffield, a footballer in the lower leagues of Iceland, Bjarni started his career at KA and at a young age moved to Norway to pay football. After spending close to a decade in Norway he moved to Icelandic giants Valur to plug a hole in the club's midfield.