Steinunn

Steinunn may refer to:


 * Ragnhildur Steinunn Jónsdóttir (born 1981), Icelandic television personality, actress, and former Ms. Iceland
 * Steinunn Ólína Þorsteinsdóttir, Icelandic actress, writer and producer
 * Steinunn Finnsdóttir (c. 1640 – c. 1710), Icelandic poet
 * Steinunn Kristín Þórðardóttir (born 1972), Managing Director of Glitnir Bank in London, UK
 * Steinunn Refsdóttir, Icelandic skaldic poetic active at the end of the 10th century
 * Steinunn Sigurðardóttir (born 1950), Icelandic author
 * Steinunn Sigurðardóttir (fatahönnuður), Icelandic fashion designer
 * Steinunn Valdís Óskarsdóttir (born 1965), Icelandic politician, and a former mayor of Reykjavík