Objective: This study aimed to reveal the relationship between the concepts of job stress, perceived organizational support, and occupational commitment on nurses, who are one of the occupational groups most affected by the coronavirus 2019. Only a few academic studies on the relationships between these concepts were carried out in the literature. Therefore, this study aimed to fill the gap mentioned in the literature. Methods: This study is a quantitative research conducted on 270 nurses working in a foundation university hospital in Istanbul. the data in this study were collected using the questionnaire method, and statistical analyses were performed using SPSS. The participants' demographic characteristics, factor and reliability analyses of job stress, perceived organizational support and occupational commitment variables, mean values of variables, and regression analysis to determine the effects of variables were conducted within the scope of the research. Results: According to the research results, there are significant relationships between job stress, perceived organizational support, and occupational commitment. Perceived organizational support plays a full-mediating role on the effects of job stress, and occupational commitment is another result of the study. Conclusion: In this study, the relationships between the concepts of job stress, perceived organizational support, and occupational commitment are determined. According to the research results, although nurses are exposed to job stress due to working conditions, their occupational commitment increases with the support they receive from their organizations. (English) [ABSTRACT FROM AUTHOR] Amac: Is stresi, algilanan orgut destegi ve mesleki baglilik kavramlari arasindaki iliskiyi ortaya koymak icin gerceklestirilen bu calisma corona virus hastaligi-2019 salginindan en cok etkilenen meslek gruplarindan biri olan hemsireler uzerine gerceklestirilmistir. Yapilan literatur taramasinda, bahsi gecen kavramlar arasindaki iliskilere yonelik akademik calismaya pek fazla rastlanilmamistir. Dolayisiyla, bu arastirmanin orijinalligi literaturde bahsi gecen boslugu doldurmasidir. Yontemler: Bu calismada, Istanbul'da bir vakif universitesi hastanesinde calisan 270 hemsire ile nicel bir arastirma gerceklestirilmistir. Arastirmada veriler anket yontemiyle toplanmis olup SPSS ile istatistiksel analizler gerceklestirilmistir. Arastirma kapsaminda katilimcilarin demografik ozellikleri, is stresi, algilanan orgut destegi ve mesleki baglilik degiskenlerine ait faktor ve guvenilirlik analizleri, degiskenlere iliskin ortalama degerler ve degiskenler arasi etkiyi belirlemeye yonelik analizler yapilmistir. Bulgular: Arastirma sonucuna gore, is stresi, algilanan orgut destegi ve mesleki baglilik arasinda anlamli iliskiler oldugu belirlenmistir. Is stresini mesleki baglilik uzerindeki etkisinde algilanan orgut desteginin tam araci role sahip olmasi arastirmanin bir diger sonucudur. Sonuc: Bu calismada, is stresi, algilanan orgut destegi ve mesleki baglilik kavramlari arasindaki iliski ortaya konmustur. Arastirma sonucuna gore, hemsireler calisma kosullarindan kaynakli is stresine maruz kalmalarina ragmen orgutlerinden almis olduklari destek ile mesleki bagliliklari artmaktadir. (Turkish) [ABSTRACT FROM AUTHOR] Copyright of Bezmialem Science is the property of Galenos Yayinevi Tic. LTD. STI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)