Eleazar ben Abraham Ḥanok Perles Altschul (died in Prague between 1632 and 1638) was a Jewish editor and writer.
Altschul was the editor of several works, to most of which he added remarks, glosses, or comments of his own.
In the epitaph written for him by his son Isaac, he is quoted as the author of several works; but these are no longer extant.
The only one that may perhaps be attributed to him in its entirety is the "Diḳduḳe Yiẓḥaḳ," a grammatical work; but it has been claimed that even for this book the notes had been previously collected by his father-in-law, Isaac ben Jekuthiel (Kohen) Kuskes, and that the name was not given to the work merely in honor of the latter.
The "Diḳduḳe Yiẓḥaḳ" is still unpublished (Adolf Neubauer, "Catalogue of the Hebrew MSS.