(1) Background: The aim is to ascertain health science students’ attitudes towards tattoos and their association with healthy lifestyles and socio-demographic variables. (2) Methods: Descriptive study conducted on pharmacy, medical and nursing students (n = 423). To ascertain attitudes towards tattoos, we used the Attitudes Towards Tattoos Scale. Other variables were physical activity, healthy diet, harmful habits and socio-demographic variables. (3) Results: A total of 12.6% (95% CI 9.1–16.2) of students reported having a tattoo; 58.9% did not regard tattoos as a health risk. In terms of attitudes, the mean score in the range of 7–35 (7—most unfavourable to 35—most favourable) was 22.6 (SD 5.2; 95% CI: 22.0–23.2). Scores were higher (p < 0.05) among women (23.1; SD: 5.3), persons aged <20 years (23.6; SD: 5.0) and smokers (23.9; SD: 4.6). Attitudes were found to be more favourable (p < 0.05) in nursing students than in pharmacy or medical students. No relationship was observed with physical activity, healthy diet or drug use. (4) Conclusions: The attitude to tattoos is most favourable among women, persons aged under 20 years and nursing students. In terms of health habits, attitudes are more favourable among smokers, regardless of their level of physical activity, compliance with healthy eating guidelines or consumption of alcohol or other drugs.