Esther Daphna "Esti" Ginzburg-Keizman (Hebrew: אסתי גינזבורג; born 6 March 1990), is an Israeli fashion model. She has modeled in international campaigns for brands like Tommy Hilfiger, Burberry, FCUK, Pull and Bear, and Castro. She was also featured in the 2009, 2010, and 2011 Sports Illustrated Swimsuit Issue. According to Forbes Israel, she was among the top ten highest paid models in Israel, alongside top Israeli models such as Shlomit Malka, Gal Gadot, and Bar Refaeli.
Ginzburg was born and grew up in the Tzahala neighbourhood of Tel Aviv, Israel. Her father, Arik Ginzburg, is an architect, while her mother is a doctor, specializing in geriatrics. Her grandfather was an engineer involved in the original planning and construction of Tel Aviv. Ginzburg is Jewish. She attended the prestigious The Ironi Yud Alef High School in Northern Tel Aviv.
She began her compulsory military service in the Israel Defense Forces on 22 July 2009, and in early October of that year, while speaking in support of enlisting, caused headlines by criticizing fellow Israeli model Bar Refaeli for evading military service via a short-lived marriage to a family friend. On joining the army Ginzburg said: "Military service is part of the things I personally believe in." She subsequently studied international relations at the Hebrew University.