Altenkirchen may refer to:

• Altenkirchen, capital of the district of Altenkirchen, Rhineland-Palatinate, Germany
• administrative divisions centered on this town:
  • Altenkirchen (district), Rhineland-Palatinate, Germany
  • Altenkirchen (Verbandsgemeinde), Rhineland-Palatinate, Germany
• Altenkirchen, Kusel, a municipality in the district of Kusel, Rhineland-Palatinate, Germany
• Altenkirchen, Mecklenburg-Vorpommern, a municipality in the district of Rügen, Mecklenburg-Vorpommern, Germany

• Euphonia chalybea
• Euphonia chlorotica
• Euphonia chrysopasta
• Euphonia concinna
• Euphonia cyanocephala
• Euphonia elegantissima
• Euphonia finschi
• Euphonia fulvicrissa
• Euphonia gouldi
• Euphonia hirundinacea
• Euphonia imitans
• Euphonia jamaica
• Euphonia laniirostris
• Euphonia luteicapilla
• Euphonia mesochrysa
• Euphonia minuta
• Euphonia musica
• Euphonia pectoralis
• Euphonia plumbea
• Euphonia rufiventris
• Euphonia saturata
• Euphonia trinitatis
• Euphonia xanthogaster
• Euphonic
• Euphoniinae