You may be thinking of the alphabets in one of the Forgotten Realms campaign guides. For example, page 86 of the D&D 3rd edition Forgotten Realms Campaign Setting has the Dethek, Espruar, and Thorass (dwarven, elvish, and ancient common) alphabets written out. Earlier editions of the campaign setting had those alphabets too, and it's likely that the 4th edition guide does as well though I haven't read it. Of note is that the Espruar alphabet was redesigned for 3rd edition, so the earlier version of Espruar (from the FR campaign setting for AD&D 2nd edition and earlier) has a very different character from the later version.
These alphabets are almost certainly copyrighted by Wizards of the Coast, since they were developed either in-house or under work-for-hire by TSR. The Dethek alphabet does appear to be inspired, by but not taken directly from, the Norse runic alphabet. I don't recognise the inspirations for Espruar or Thorass, if there were any.
Despite the copyright, I know that there are Dethek, Espruar, and Thorass font files floating about online somewhere. I couldn't point you to them, but I know they exist because I've found copies of them before.