"Cauchi" as a surname clearly has its base on the Islands of Malta and Gozo.  The "Cauchy" French spelling of the name is firmly based in France.   Historians and genealogists trace the name back through 600 to 1,000 years in those regions, also including Italy.  This simple study is a snapshot of 2005-08 - where the Cauchi households are located now.

TOTALS?  The total of all households tallied on this page are approximately 1,887 "Cauchi" and 844 "Cauchy" covering 22 countries.  Please see the cautions and disclaimer under other countries, below.

The Cauchi surname is relatively uncommon in the United States.  The following is a state geographic listing of the 239 Cauchi names as listed in the U.S. telephone directories, courtesy of whitepages.com and D|ex. 
Families are concentrated in only four states: 60 in New York, 56 in California, 48 in Michigan and 31 in Florida.   Another 44 Cauchi families are scattered among 20 states, which leaves 26 states with no Cauchi listed.  In addition, there are   71 "Cauchy" families (the French spelling) listed in 16 states.

This U.S. list is complete as ofSeptember 2008, but only includes individuals choosing to be included in published phone directories, and has no information on family size.  Where identified, exact duplicate names & addresses are counted only once.  With luck, some of the underlined linked totals provide the names, cities and phone numbers from the public D|ex telephone lists. 
[Note: Whitepages.com has online listings by state and nationwide, with totals that include both home and work numbers.  A Dex^© redesign disabled direct state links as of Feb 2007, their totals are in (parenthesis) below. 

For quick comparison, there are Cauchi households listed as follows:

• Malta  =  851
• Australia = 362   ['08 update]
• Canada = 58
• France = 191 (+ 708 "Cauchy")
• Italy = 135

More sources of Cauchi surname information:

• Maltese Surname Connection: Cauchi - by Search Malta. (c) 2005
• MaltaCom phone Directory: "Cauchi" in MALTA, also town search, summarized in the table below. (c) 2005

The islands of Malta remain the historical and current center for Cauchi names and families, with 850 plus directory listings. The largest percentage by population are concentrated on Gozo, the ancestral birthplace of many Cauchi's.  Modern internet technology has made it easy to identify both areas and individuals, so for comparison, here are some "Cauchi" name counts from Gozo and the main island of Malta.

Other Countries:

The following are some interesting, major examples of Cauchi locations and migration to additional nations.  The listings vary in terms of completeness and accuracy, due to the widely differing policies used by private and national telephone companies.  Some appear quite complete and updated regularly (for example, Malta, Australia, Canada, France).  Others are served by multiple companies that may not cooperate on listings, or maintain lists only locally, making it far more difficult to count or link for the entire country (for example Argentina, Germany, Greece).  Many other large countries do not have residential listings online (for example Brazil, China, India, Russia) or use alphabets not readily searchable from the U.S. or Europe. 

After conducting countrywide searches, there were no listings found so far for: Am. Samoa, Andorra, Austria, Belize, Bosnia and Herzegovina, Croatia, Czech Republic, Estonia, Hungary, Iceland, Norway, Philippines (part), Portugal, Romania, Slovakia, Slovenia, Switzerland, Tonga, Uruguay.  For links to other national phone directories try NumberWay.com.

[Further information or explanation about the origins and history of this family name always is welcome]

  Future research may further examine variations including "Cauchy" from original French and "Kaoukis" the Greek spelling.

This page was compiled and posted as a non-commercial family history document.  The authors provide the summary text appearing above as public information, but they are not responsible for information on any linked web pages. Due to respect for privacy, no individuals are named or listed in this report.  About the authors and Colorado Access 2000. 
"D|ex" is copyright © 2008 D ex Media, Inc. All Rights Reserved.

Initially posted September 23, 2005; additions September 20, 2008.