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Dénes Andrássy
Born	19 November 1835 Krasznahorkaváralja, Kingdom of Hungary
Died	23 February 1913(1913-02-23) (aged 77) Palermo, Sicily
Nationality	Hungarian
Spouse	Franziska Seraphica Hablawetz
Parent(s)	György Andrássy Franciska Königsegg-Aulendorfi

Count Dénes Andrássy de Csíkszentkirály et Krasznahorka (19 November 1835 – 23 February 1913) was a Hungarian nobleman, who served as chairman of the Hungarian Heraldic and Genealogical Society. He was a wealthy, generous and enlightened patron of the arts.

His parents were Count György Andrássy and Countess Franciska Königsegg-Aulendorfi. He married Franciska Hablawetz. After her death he founded Franciska Relic Museum in his birthplace.

He was a member of the Hungarian Academy of Sciences.

• Magyar életrajzi lexikon III.: Kiegészítő kötet (A–Z). ed. Ágnes Kenyeres. Budapest. Akadémiai Kiadó. 1981. p. 12.