No, Instagram is only available for iPhone and Android phones. It can be downloaded from the App store for iPhones and on Google Play for Android. It is a free download.
The photo sharing application allows users to take a photo, apply filters to the image and share it with friends on the application, or on Facebook or Twitter. For a while since its October 2010 release, it was only available on iPhone, but the application is available on Android as of April 3, 2012.