USNS Andrew J. Higgins (T-AO-190) was a Henry J. Kaiser-class oiler of the United States Navy which saw active service from 1987 to 1996.

Andrew J. Higgins, the fourth ship of the Henry J. Kaiser class, was laid down at Avondale Shipyard, Inc., at New Orleans, Louisiana, on 21 November 1985 and launched on 17 January 1987.

Andrew J. Higgins entered non-commissioned U.S. Navy service under Military Sealift Command control with a primarily civilian crew on 22 October 1987.

As part of that arrangement, the Chilean Navy operated Almirante Montt for 40 sea days in the Canadian Pacific region in support of Royal Canadian Navy training requirements in July and August 2015, working with the frigates HMCS Calgary and HMCS Vancouver.

[1][2] Almirante Montt returned to Canada in 2016, operating with the Royal Canadian Navy from April to June 2016.