Yes — but the combined work must be released under the more restrictive license.
GNU Lesser GPL v3.0 is a file-level (or library-level) copyleft license. You can include GNU Lesser GPL v3.0 files in a BSD 2-Clause License project; the GNU Lesser GPL v3.0 files retain their copyleft obligation (changes must be released), while the project at large can stay BSD 2-Clause License. Keep file boundaries clear.
| License | Family | Patent grant |
|---|---|---|
| GNU Lesser GPL v3.0 (LGPL-3.0) | weak-copyleft | Yes |
| BSD 2-Clause License (BSD-2-Clause) | permissive | No (implicit at most) |
GNU Lesser GPL v3.0: Same library-linking permission as LGPL-2.1, with GPLv3's patent provisions inherited.
BSD 2-Clause License: Two-clause BSD: very similar to MIT, no patent grant.
If you found this page because you're trying to figure out whether shipping a particular dependency is safe, the answer above is a starting point — not a substitute for reading the actual licenses or talking to a lawyer when stakes are high.
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