YouTube – How to Block Certain Users from Showing in Searches

AFAIK there currently is no way to do this server-side i.e. clients will have to install some form of AdBlocking technology for their respective browsers, but at least there are many options available e.g. Ad Block Plus.

The fact of the matter is, Google sadly still has yet to offer some type of pay option to disable ads - both for viewers and directors!

Due to this reason, several friends have moved over to Vimeo and MetaCafe which (currently still) never displays directly on videos, instead opting for ads displaying only on the side of the page. I'm not sure about MetaCafe but Vimeo also lets you embed videos in your website e.g. Wordpress blogs - where you will never see an advertisement!

No, there is no way you can do that on YouTube.

Anyhow,

1. You can mark the videos you upload as "Adult", so that sign-in would be required to see the video and YouTube users who have an age below 18 according to the birthday they provided during creation of account will not be able to see the video.

2. You may make your YouTube video uploaded to be available only in certain countries.

3. While uploading the YouTube video, you may mark it as "Private" and share it with up to 10 YouTube users who are your 'Friends' on YouTube.

4. Do not use your real name in your YouTube Profile/Channel and do not let your friends/family/the particular person know your name on YouTube (if that makes any sense in your case)