Longagnani is typically Emilian from the area that includes the Reggio and Modena areas, Modena and Reggio Emilia in particular, Lungagnani is absolutely extremely rare, should derive from the toponym Lungagnano Superiore, a fraction of Monchio delle Corti in the Parma area. additions provided by Giovanni Vezzelli The surname Longagnani is probably of a supernominal origin, from 'long' with a double suffix (- anio + ano), to indicate a "slow, lazy" person. In this regard, I recall the dialectal voice of Reggio Emilia Lungagnàn, designating "inconclusive, undecided man, etc." The hypothesis of a local derivation has no basis for the non-existence, as far as I am aware, of a toponym Longagnano. Source: F. Violi, surnames in Modena and Modena, 1996.
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