The study aimed at investigating the contribution of Ward Education Officers supervisory roles on teachers’ school attendance in public secondary schools in Longido District, Tanzania. The study was guided by one research question aimed to find out the extent to which WEOs supervisory roles influence teacher’s school attendance in public secondary schools in Longido District, Tanzania. Administrative Theory of Management developed by Henri Fayol in 19th Century was used to guide this study. The study employed Convergent design under mixed method approach. The targeted population of this study include 9 heads of schools, 1 DEO, 9 ward education officers’ and 283 teachers from the 09 public secondary schools in Longido District, Tanzania that make a total number of 302 populations. The sample size of this study included 4 heads of schools, 4 ward education officers, 48 teachers from 4 public secondary schools and 1 DEO in Longido District to make the total number of 57 respondents. Questionnaires, interview guide and document analysis guide were used to collect data from the respondents. The reliability of quantitative data was established through Cronbach-Alpha where by (r=0.86 for teachers’ questionnaire) while qualitative data through triangulation and member checking methods. Quantitative data was analyzed by using descriptive analysis to generate frequency, means and percentages. Qualitative data was analyzed thematically and presented in words by verbatim quotations. Research ethics such as anonymity, confidentiality and acknowledgement were adhered across the entire research process. The study found out that good communication between WEOs and heads of schools, inspection of teachers' attendance register books, frequently schools’ visits and provide advice to teachers who are not attending to schools contribute good attendance to teachers. The researcher concluded that WEOs supervisory roles contribute teachers school attendance positively whereby teachers adhered to code of conduct by coming and departure to school on time. The study recommends that; WEOs should encourage teachers attending to school daily and solve the conflicts and management to enhance their attendance at schools. The researcher concluded that Ward supervisory roles influence teachers school attendance positively