Will the Yongnuo RF-602 flash trigger work on an Olympus OMD?

Will the Yongnuo RF-602 flash trigger work on an Olympus OMD?

Yes. The Olympus has a standard hotshoe, like most DSLR's (except Sony).

The flash receiver should work with most flashes - I've used mine with Nikon. Canon, Olympus. Yongnuo (& an old National) flash. I've also used my RF502's to trigger my studio flashes.

Be sure to use your camera in manual exposure mode - it won't recognise anything in the hotshoe in Auto modes. I believe they work on any D-SLR. It becomes a problem with the flash unit you're trying to use it with. Not all of them match.
I've done studio work with the pocket wizard where the Yongnuo wouldn't work. I don't know why. Yes, wireless flash triggers will work on any camera/flash combo with standard hotshoe mounts.

I believe they work on any D-SLR. It becomes a problem with the flash unit you're trying to use it with. Not all of them match.
I've done studio work with the pocket wizard where the Yongnuo wouldn't work. I don't know why.

Yes, wireless flash triggers will work on any camera/flash combo with standard hotshoe mounts.