In this study, the effect of Covid-19 phobia on perceived stress in prehospital emergency care professionals was investigated. No sampling method was implemented in this study, and it was tried to access the whole population (n=102). The study was conducted between July 2020 and August 2020. The study data were collected through the face-to-face interview. Descriptive statistics, t test, ANOVA, Pearson's correlation and simple regression analysis were used to analyze the data. The results of the analysis revealed that the perceived stress levels were moderate or high in approximately one third of the prehospital EMS professionals. The participants' Covid-19 phobia levels were low. The perceived stress levels were significantly higher in the participants who were 30 years old or younger, single or working with the title of paramedic. Similarly, Covid-19 phobia levels were also significantly higher in women, participants aged 30 and under, and those diagnosed with Covid-19. There was a moderate (r=0.68), positive and significant correlation between Covid-19 phobia levels and perceived stress levels. Therefore, as the Covid-19 phobia levels of prehospital EMS professionals increased, so did their perceived stress levels. The result of the regression analysis demonstrated that a one-unit increase in EMS professionals' Covid-19 phobia levels increased their perceived stress level by 0.46. A correlation was determined between Covid-19 phobia and the perceived stress in prehospital EMS professionals and thus it is recommended that larger-scale studies should be conducted to better determine this relationship and that interventional practices should be planned.