We both heard someone call my name at home. Any ideas what could explain it?

I’d start with ordinary sound sources, even if nothing obvious was playing. A voice-like sound can come from outside, a neighboring room, plumbing, a fan, or a device that briefly made noise. Check whether windows, vents, or shared walls could carry sound, and see if anything in the house makes a similar sound at certain times.

Two people hearing the same thing makes it feel especially convincing, but it doesn’t tell you where the sound came from. A brief, unclear sound can get interpreted as a familiar voice, and once one person checks with the other, you can both confirm the same impression without knowing its source. That’s a possibility, not a reason to assume either of you made it up.

If it was a one-off, you can note the time and what was running nearby, then see whether anything similar happens again. If voice-like sounds become frequent, upsetting, or come with other changes in how you feel or function, it would be sensible to talk with a health professional. One odd moment by itself doesn’t establish what caused it.