The influence of surrounding people in women"s sport practice is analysed. The sample was made up of 636 women from Spain, aged between 15 and 64 (M = 38.36; SD = 11.51). The measurement instrument was an online survey with close-ended questions about the practice of sportphysical activities and the support of significant others (father, mother, brothers/sisters, best friends and workmates), which followed the Health Behaviour Survey (HBS; Wold, Aarö and Smith, 1994 versioned by Balaguer, 2000). Results show predominantly low levels of sport practice (1-2 days/week), with women aged 50-64 having the highest levels of practice (5-7 days/week). Concerning influences from the environment, it is noticeable that brothers/sisters, best friends and workmates who not only practice sport but also encourage women to practise it are more influential than parents; in particular, the presence of supportive friends increases with age. These data complement preceding studies, as well as suggest new research issues related to women"s sport practice in Spain.