Not sure if there is an proper name, had it in Israel but have seen it (or similar variations) in Moroccan restaurants (in the US). Comprised of primarily diced cucumbers and tomatoes, that have been seasoned.
Not too surprisingly given where you found it, it's called an Israeli Salad in most parts of the world.
In Israel, it's just called a chopped salad or (according to the wiki article - I never personally encountered this) an Arab salad.
The description itself is the base for Fattoush, which has as many names as variations:
I found one place that calls it "Jerusalem Salad" (theirs is served with tahini). Another restaurant has a variation that includes green bell peppers called "Lebanese Salad." (Click here for a bunch of pretty pictures)
In Morocco, this is a very common salad, it's usually made from diced cucumbers, tomato, and parsley to which a vinaigrette is added, some people add finely chopped onions. Variations include mint, and the vinaigrette is sometimes made with salt, pepper and paprika or cumin also.