Introduction.:
Old people constitute a very diversified group, especially in terms of health status, which is determined by life style and related health behaviours.

Objectives:
The aim of this study was to assess health behaviours and health locus of control with regard to socio- -demographic variables, as well as to establish the effect of health locus of control on the health behaviours among senior citizens.

Material and methods:
The survey-based study involved 220 senior citizens aged 52–88 years, performed using the Multidimensional Health Locus of Control (MHLC) scale, the Health Behaviour Inventory (HBI), and an author-constructed questionnaire.

Results:
The levels of healthy behaviours displayed by the senior citizens positively correlated with their internal health locus of control belief. Variables, such as education, age, and place of residence, substantially correlated with the levels of healthy behaviours and health locus of control.

Conclusions:
The majority of the subjects were characterized by an internal health locus of control and external (dependent on other people) health locus of control beliefs. Positive health behaviours were mostly observed in the domains of mental attitudes and preventive behaviours. The stronger the respondents’ conviction that their health status was under their own control or under the control of other people, the higher the levels of their health behaviours.