Radostin (feminine: Radostina) is a Bulgarian given name. Notable people with the name include:
Radostin Radostin Kishishev (born 1974), Bulgarian footballer Radostin Stanev (born 1975), Bulgarian footballer Radostin Stoychev (born 1969), Bulgarian volleyball player and coach Radostin Vasilev (born 1985), Bulgarian politician
Radostina Radostina Chitigoi (born 1978), Bulgarian volleyball player Radostina Marinova (born 1998), Bulgarian volleyball player Radostina Todorova (born 1995), Bulgarian model and beauty pageant titleholder Radostina Vasekova (born 1950), Bulgarian shot putter