Tierney Thys (born 1966) is an American marine biologist, science educator, and National Geographic explorer.

[4] She was also the science editor for The Shape of Life and director for Strange Days on Planet Earth.

[1] She has given two TED talks, "Swim with the giant sunfish", and "The secret life of plankton".

[5] A chapter of Earth Heroes: Champions of the Ocean, by Fran Hodgkins, is about her, and she is briefly profiled in Girls Research!

[1][6] Science Methods and Process Skills: Meet Tierney Thys, National Geographic Emerging Explorer, by Kathy Cabe Trundle, was published by National Geographic School Publishing in 2011.