Yes. USB Flash Drives have a number of different names.
"Pen drive", "jump drive", "Memory Key", and even erroneous names like "Memory Stick" (which is actually Sony proprietary memory device) are sometimes used.
Also, like other products, some often use brand names to describe the product. For example, "ThumbDrive" is sometimes used; this is what Trek Technology who were first commercial production of USB Flash Drives called their product.