Ruth Teitelbaum (née Lichterman) (1924 – 1986 in Dallas) was one of the original programmers for the ENIAC computer.
Teitelbaum graduated from Hunter College with a B.Sc. in Mathematics. She was hired by the Moore School of Engineering to compute ballisticstrajectories and was later selected as one of the first programmers for the ENIAC, which was developed to perform the same calculations. Along with Maryln Meltzer, Teitelbaum was part of a special area of the ENIAC project. Using analog technology, they calculated ballistic trajectory equations.  Although a pivotal role in the rise of computers, she was given little credit toward the foundations of the ENIAC.  She travelled with ENIAC to the Ballistics Research Laboratory at the Aberdeen Proving Grounds where she remained for two more years to train the next group of ENIAC programmers. She died in Dallas, Texas in 1986.