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There are so many patterns available that not every one of them will have a name that is unique and widely recognized by Photoshop pros. If you are trying to find the pattern among commercial sources (ie, vendors where you can purchase such things), each company will likely have their own name for a given pattern. 

That being said, probably the best way to describe them is by generic descriptions.  For example, all three seem to come under the category of "seamless tilings". So, the first might be described as a "shaded diamonds seamless tiling", the 2nd as something like "interlocking hexagons seamless tiling", and the 3rd as "concentric circles seamless tiling".  Whether or not you'll find anything if you look up these names is anyone's guess.

Tom M