Absolutely yes, WordPress offers you a exceptionally easy way to upload video to your wordpress webiste. In order to upload a video from your computer, you need to edit a post and click the Add Media icon on the Edit Post, and then upload the video, the recommended format is mp4.
One more thing you need to pay more attention to is the file size, you may not upload files so large, if you want to upload large video, you need to modify the settings of your web hosting provider.