The Illabo to Tumut Pipeline is a distribution pipeline in the NSW towns of Gundagai, Adelong and Tumut. The pipeline is owned by Australian Gas Networks (AGN) and is operated by the APA Group.

The Illabo to Tumut Pipeline is 164 km in length, has a nominal diameter of 200 mm, and a capacity of 10.4 TJ/day for Tumut/Adelong and 0.6 TJ/day for Gundagai.  It begins close to Illabo and connects the Young to Wagga portion of the APA Group’s Moomba Sydney Pipeline with Tumut. 

The Illabo to Tumut Pipeline is currently a non-scheme pipeline, and is subject to the access regime for non-scheme pipelines under Part 10 of the National Gas Rules (NGR). It was previously subject to the access regime for non-scheme pipelines under the former Part 23 of the NGR, which was replaced by Part 10.

The AER has granted the following exemptions for the pipeline:

• On 13 December 2017, a five year category 3 exemption under Part 23 of the NGR, which was later revoked on 23 November 2018. 
• On 26 November 2018, a new Category 3 exemption.
• On 1 March 2024, a five year Category 2 exemption.

As part of a partnership, Great Southern Energy Gas Networks and a Minson/Nacap joint venture constructed the pipeline in 2000.