Should I add my brand name to every page title

[AsafY]

Currently for every page I automatically add my brand name

Ie: poduct xxx - brand name

product yyy - brand name.

is this considered good or bad practice?

[AWCthreads]

Ditto those who say use it. In addition, if you're a local retailer with some name recognition, you'll benefit from having your name back-branded in the title.

Remember world famous brands were not always world famous.

[Thos003]

It is a common practice. It could help establish a theme to your site if your brand is keyword rich. It also helps establish an entity. But it's not a absolute must. I would favor a yes in most cases. In some you may need to shorten it to an acronym. K&J Law vs Kempton & Johnson Law.

And just another side note, most sites seem to favor a break over a dash.

Product xxx | brand name

[EGOL]

Would I do this if I had a world-famous brand?  Yes, because the brand itself will elicit clicks and conversions.

Do I do it personally? No, because the optimization effect of stuffing another KW in the title might have better ROI.

[Copstead]

Yes, (well, depending on your brand name), I would use it.  If the Title is structured professionally and ends with | The Company, it gives credibility to the page.

[AdoptionHelp]

Yes, almost all sites do this. If there is ever a chance someone could search for your brand name then you definitely want to be on top of the SERPs for those searches. If you don't think people will ever search your brand name then you've got  more fundamental marketing work to do before the SEO.

By way of examples: Amazon and Zappos both do this (in varying forms). A good rule of thumb is if Amazon and Zappos do it, you should give it serious consideration.