Purpose: A scientometric study was conducted to analyze the research productivity and citation patterns of librarians in Tanzania for a period of 30 years from 1984 to 2013. Research methods: Data were obtained using the Publish or Perish software which uses Google Scholar to retrieve scholars’ publications, citations and related metrics. For each librarian, the retrieved metrics were the total number of papers, total number of citations, average citations per paper, average papers per author, average citations per year, average citations per author, and four indices - the h-index, g-index, Hc-index, and the HI-norm. Findings: The study findings indicate that a total of 434 publications were recorded for all librarians, giving an average of 14.5 publications per year. The year 2008 had the most (9.9%) publications followed by 2010 (7.8%) while the years 1985 and 1987 had the lowest (0.2%) number of publications …