Lyta Alexander is a character from the fictional universe of the science-fiction television series Babylon 5, played by Patricia Tallman.

Lyta was introduced in the pilot episode "The Gathering" as a telepath assigned to the Babylon 5 space station by the Psi Corps, a fictional organization providing support to telepaths and monitoring their activity. However, she did not appear in the remainder of Season One due to a dispute concerning Tallman's salary . Lyta's role in the series was largely taken up by Andrea Thompson, who was cast as Talia Winters, a telepath who took over Lyta's responsibilities in the station. In the script it was implied that the latter had to be replaced, as she had made telepathic contact with Kosh, the ambassador of the secretive Vorlon Empire. After Thompson left the series due to disagreements regarding the amount of screen time given to her character , Lyta returned as a recurring character in Seasons Two and Three, and became a regular cast member from Season Four onward. Her character simply re-assumed the dramatic arc once intended for Thompson.