Lucene implementations in languages other than Java:
- CLucene - Lucene implementation in C++
- Lucene.Net - Lucene implementation in .NET
- Lucene4c - Lucene implementation in C
- LuceneKit - Lucene implementation in Objective-C (Cocoa/GNUstep support)
- Lupy - Lucene implementation in Python (RETIRED)
- NLucene - another Lucene implementation in .NET (out of date)
- Zend Search - Lucene implementation in the Zend Framework for PHP 5
- Plucene - Lucene implementation in Perl
- KinoSearch - a new Lucene implementation in Perl
- PyLucene - GCJ-compiled version of Java Lucene integrated with Python
- MUTIS - Lucene implementation in Delphi
- Ferret - Lucene implementation in Ruby
- Montezuma - Lucene implementation in Common Lisp