Yes, here you can search for royalty free images from a list of websites that provide images that can be reused anywhere. Type in a keyword in the box shown below and you will be taken to google search result that displays only free stock images!!!
Enter Your Keyword*: Search
N.B.: Please don’t leave the field blank
And yes, you can also use Google’s search tools to filter out images that are labelled for reuse! But make sure that you are looking in to the license here, because it might require you to give credit to the image creator.
*Please read the attribution rule of images before using them.