When you post the sample photo, please just crop in very tightly on your intended focus point and give us a "100% crop" of a small detailed region of the photo. When large images are scaled down to post on the web, the ability to detect out-of-focus areas is substantially reduced. Having a sample of a 100% crop will let us see how well the camera is really doing.
Also, please describe what you are doing to ensure a blur-free photo (even though you're not satisfied with the results.)
It is possible to have a problem with the lens which can result in front-focus or back-focus (the true focused point is either nearer or farther than your subject distance.)
What focus mode are you using?
Which AF points are active. Are you SURE the camera used the AF point which was covering your intended subject (Note: If you allow your 60D to use any of the 9 AF points, then it will ALWAYS select the AF point which can achieve a focus lock at the CLOSEST focusing distance. THAT MEANS that if your subject is in the center, but some distracting object was located on the right side of the frame only much closer (and the right-side AF point was located on that distracting object) then the camera WILL focus on the distracting object and NOT on your intended subject.
Do you have more than one lens?
If so, do you have this problem with all of your lenses?
Is the camera on a solid tripod or are you hand-holding the camera (because it's possible the blur is caused by camera movement and not focus error.)
If these are hand-held shots, which lens are you using, what is the focal length of the blurry shot, and what was your shutter speed (these are related - the minimum shutter speed will depend on the focal length of the lens.)
Take a photo by looking through the viewfinder to focus and shoot.
Take ANOTHER photo by using "Live View" (using the LCD screen on back) to focus and shoot.
Compare those two shots (they use COMPLETELY different focusing systems. So if there's a problem with your camera, this may reveal the issue.)
If you are more specific about your shooting circumstances (equipment, settings, technique, etc.) then your responses will be more helpful.