Doulos SIL Font
Unicode font that contains a comprehensive inventory of glyphs needed for almost any Roman- or Cyrillic-based writing system, whether used for phonetic or orthographic needs. Includes glyphs for the IPA.
Phonetic (IPA) fonts
List of links to IPA and other phonetic fonts. [compiled by Luc Devroye]
SIL Encore IPA Fonts
Set of scalable IPA fonts containing the full International Phonetic Alphabet. (Not Unicode: see Doulos SIL)