Geographic Information Systems Stack Exchange is a question and answer site for cartographers, geographers and GIS professionals. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

We need to link to Quantum GIS on a major official website. My legal department asks me if "Quantum GIS" is trademarked. Is it? Thanks -- Alex

share|improve this question
Check out the website under about. – lewis Jan 31 '13 at 15:27
@lewis why not answering the question if you know it? – 5chdn Jan 31 '13 at 15:50
Thanks Lewis, while the about page does mention the origin of the name, it currently says nothing about whether it is trademarked or not. Right? – Satri Jan 31 '13 at 16:28
I reply below Satri – lewis Feb 1 '13 at 14:08
More open source projects are registering their names to protect them, see the example of issues surrounding Firefox: – scw Feb 6 '13 at 20:59
up vote 8 down vote accepted

Short answer: No it is not yet trademarked.

share|improve this answer
Tim, you say "not yet", does that mean you (plural) intend to undertake that at some point? – matt wilkie Feb 1 '13 at 17:25
@mattwilkie We are planning to get at least an EU trademark on the name QGIS (Quantum GIS now no longer being the official name of the project). Unfortunately we do not have the financial power to obtain a world-wide trademark. – Tim Sutton Oct 3 '13 at 20:00
now is a Trademark: – Luigi Pirelli Oct 8 '14 at 17:01
beloging to QGIS community: – Luigi Pirelli Oct 8 '14 at 17:01
  • The phrase, "Quantum GIS", is not found in the US Trademark electronic search.

  • Trademark status is not mentioned on the Quantum GIS website, nor is,

  • a trademark symbol nor statement used in the documentation.

  • The OSGeo website does have two trademark-related pages, but they only mention various OSGeo and FOSS trademarks.

You might check the archives of the mailing lists, particularly the project steering committee.

share|improve this answer
+1 for the trademark electronic search – nickves Jan 31 '13 at 21:22

Their wiki discusses how to cite the software

Cite the QGIS project in general

Quantum GIS Development Team, <YEAR>. Quantum GIS Geographic Information System. Open Source Geospatial Foundation Project.

share|improve this answer

Please note: QGIS name and logo are now under trademark

share|improve this answer

Because I like to encourage research, however, I take your point. My research indicates that the answer can be gleaned from the documentation.

"This document is the original user guide of the described software Quantum GIS. The software and hardware described in this document are in most cases registered trademarks and are therefore subject to the legal requirements. Quantum GIS is subject to the GNU General Public License. Find more information on the Quantum GIS Homepage"

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.