Harman Patil (Editor)I love reading books and watching sci fi flicks TietjenUpdated on Jan 24, 2024EditLikeCommentShareShare on FacebookTweet on TwitterShare on LinkedInShare on RedditSign inTietjen is a German surname. Notable people with the surname include:Bettina Tietjen (born 1960), German television presenter Friedrich Tietjen (1834–1895), German astronomer Heinz Tietjen (1881–1967), German conductor James J. Tietjen (1933–2016), American researcher and executive John Tietjen (1928–2004), American Lutheran clergyman, theologian Other uses2158 Tietjen, main-belt asteroid Wilhelm-Tietjen-Stiftung für Fertilisation, fertility research group More Alchetron TopicsReferencesTietjen Wikipedia (Text) CC BY-SASimilar TopicsLai BhaariTommaso BianchiAaron Pixton