I thought this name was French at first, but it turns out it's no language known to (wo)man. The band explains:
"The first two letters were intentional, because there was an 'au' sound in the track, and the rest of the letters were bashed randomly on the keyboard. We had this track title for ages, and we had written it on a cassette, with some graphics. It looked good, and we began using it as our name."
Let's hope these guys aren't air traffic controllers in their day jobs. My next question concerns the pronunciation of Autechre. Wikipedia says it's usually pronounced "awe-teh-ker." I wonder how many people say it with a French inflection? It's pretty advanced French too, with the phlegmy "hre" sound.
In sum, we have a keyboard-bashed name that is prone to be hilariously mispronounced by wanna-be Francophones. Brilliant or bollocks? For once, I'm not sure.