Ezechiel de Decker (c. 1603-c. 1647) was a Dutch surveyor and teacher of mathematics.
In 1625, De Decker entered a contract with Adriaan Vlacq for the publication of several translations of books by John Napier, Edmund Gunter and Henry Briggs.
A second book was made of the logarithms of the first 10000 numbers from Briggs' Arithmetica logarithmica published in 1624.
In 1627, De Decker's "Tweede deel" was published and it contained the logarithms of all numbers from 1 to 100000, to 10 places.
Only very few copies of this book are known and its publication was apparently stopped or delayed.