Objective: This study was conducted to determine the knowledge of and attitudes and behaviours towards the National Cancer Screening Program among women aged 30-70 years who have visited the Family Health Centres. Material and Method: This descriptive study was conducted among the women in a province of Black Sea region between April and December 2015. The study population consisted of all women living in the province, the sample of the study was composed of the women in the age group 30-70 years, which is the age range for breast, cervical and colorectal cancer screening as per national standards. The sample size was determined through the formula used for groups with a specific universe and 446 women from the districts were included in the study using the stratified sampling method. The data of the study were collected through a “Questionnaire” prepared by the researchers in line with the literature. Descriptive statistics and Chi-square test were used in the assessment of data. Findings: In the study, it was found that, of the women, 42.1% were between the ages of 30 and 39, 87.8% were married, 35.8% were primary school graduates, 63.9% were housewives and 47.9% were living in a district. Of the women, 27.5%, 41.4%, 45.6%, 42.3% and 17% stated that they have performed monthly breast self-exams regularly, have had clinical breast exams, have had a mammogram, have had Pap smear test and have undergone colorectal cancer screening, respectively. Conclusion: It was found in the study that the practices for early diagnosis of breast, cervical and colorectal cancers among most of the women have been inadequate. In line with these results, it is recommended that women should be informed by health professionals about screening programs and their perceived health beliefs about cancer screening should be improved so that they care about these programs.