Ira Jan (Russian: ?´?? ??) is the pseudonym of the painter and writer Esther Yoselevitch Slepyan (????´?? ??????´??? ?????´?; 2 February 1869 – 24 April 1919), primarily known as Haim Nahman Bialik's mistress was also a member of the commune at the Bezalel and among the founders of Gymnasia Rehavia.