A300
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 2
Situational Awareness; Communication Breakdown; Confusion
ATC Issue All Types; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Clearance; Ground Incursion Runway
Human Factors; Aircraft; Company Policy
Aircraft X was told to taxi and hold short of the runway (due to lots of taxiway closures). Aircraft Y was a previous arrival that was holding short of the runway at the approach end. I was informed later tonight afterwards that I told Aircraft X to cross the runway when I meant to instruct Aircraft Y to cross. Both read it back. I caught it and told Aircraft X to hold short; and then cross once landing traffic was no longer a factor. Just make sure I issue the correct callsign.
SDF Tower Controller reported they issued a runway crossing clearance to the wrong aircraft due to confusion caused by similar sounding call signs.