Siona Shimshi (also "Ziona"; Hebrew: ציונה שמשי; July 14, 1939 – October 16, 2018) was an Israeli painter, sculptor, ceramist, and textile designer.

[7] She studied at the Avni Institute in Tel Aviv from 1956 to 1959, with Avigdor Stematsky, Yehezkel Streichman, and Moshe Mokady.

[4][8][14][15][16] In 1979, she designed the set for a performance of A Simple Story by Shmuel Yosef Agnon for the Habimah Theater in Tel Aviv.

[4][17] Among her creations are a work in wood that is exhibited in the King David Hotel in Jerusalem, a wall hanging at the Tel Aviv Hilton, a 1998 sculpture for Israel's 50th anniversary that is exhibited in Holon, glass walls at Kennedy Airport in New York City, and a 2004 portrait painting of Natan Alterman that appears on the facade of Tel Aviv City Hall.

[4][18] Shimshi was awarded the 1988 Arie El Hanani Prize by the Joshua Rabinowitz Foundation for Arts, for her sculpture in Goren Goldstein Park in Tel Aviv.