Arthit Sunthornphit

{{Short description|Thai footballer}}

{{Infobox football biography

| name = Arthit Sunthornphit

| image = Arthit Sunthornpit 2016.jpg

| caption =

| fullname = Arthit Sunthornphit

| birth_date = {{birth date and age|df=y|1986|4|19}}

| birth_place = Khon Kaen, Thailand

| height = {{height|meters=1.79}}

| currentclub =

| clubnumber =

| position = Midfielder

| youthyears1 = 2001–2003

| youthclubs1 = Assumption College Sriracha

| years1 = 2004–2013 | clubs1 = Chonburi | caps1 = 168 | goals1 = 28

| years2 = 2012 | clubs2 = → Wuachon United (loan) | caps2 = 11 | goals2 = 1

| years3 = 2014–2015 | clubs3 = Chainat Hornbill | caps3 = 32 | goals3 = 2

| years4 = 2015–2016 | clubs4 = Chiangrai United | caps4 = 46 | goals4 = 4

| years5 = 2017–2018 | clubs5 = PTT Rayong | caps5 = 29 | goals5 = 5

| years6 = 2019–2021 | clubs6 = Khon Kaen United | caps6 = 53 | goals6 = 5

| years7 = 2021–2022 | clubs7 = Lamphun Warrior | caps7 = 34 | goals7 = 4

| years8 = 2022–2023 | clubs8 = Phitsanulok | caps8 = 23 | goals8 = 5

| years9 = 2023–2024| clubs9 = Samut Sakhon City | caps9 = 20 | goals9 = 6

| years10 = 2024| clubs10 = Pattaya United | caps10 = 7 | goals10 = 1

| years11 = 2024–| clubs11 = Muang Loei United | caps11 = 0 | goals11 = 1

| nationalyears1 = 2007–2009

| nationalteam1 = Thailand U23

| nationalcaps1 = 10

| nationalgoals1 = 5

| nationalyears2 = 2008–2013

| nationalteam2 = Thailand

| nationalcaps2 = 18

| nationalgoals2 = 3

| manageryears1 = 2025– | managerclubs1 = Muang Loei United

| pcupdate = 14 January 2024

| ntupdate = 18 July 2008

| medaltemplates = {{medal|Team|Thailand}}

{{Medal|Competition|Asean Football Championship}}

{{medal|RU|AFF Suzuki Cup 2008|2008}}

{{medal|RU|AFF Suzuki Cup 2012|2012}}

}}

Arthit Sunthornphit ({{langx|th|อาทิตย์ สุนทรพิธ}}, born April 19, 1986), simply known as Bas ({{langx|th|บาส}}), is a Thai professional footballer who plays as a midfielder for Thai League 2 club Pattaya United. Arthit is left-footed and is a free kick specialist.