The objective of this research was to measure attitudes towards euthanasia in college students of three careers of the Pontifical Xaverian University of Bogota and to determine if there are differences among these attitudes. To accomplish this objective, it was proceeded in two moments. The first phase was developing a questionnaire to measure attitudes and its validation was done by experts, and the subsequent psychometric analysis. The second phase consisted in applying the questionnaire to 147 students. The analysis used descriptives and an ANOVA which suggested differences between the groups in terms of attitudes, being the psychology students the ones that showed a better attitude towards euthanasia, followed nearly by the medicine students, and finally the nursing students who showed a less favorable attitude towards euthanasia. This study presents an important contribution by developing a valid questionnaire that the scientific community can now use to measure attitudes towards euthanasia, and it stablished the attitudes of three groups of students of different careers.