The Complete Trio Collection is compilation album by American singer-songwriters Dolly Parton, Emmylou Harris and Linda Ronstadt. It brings together newly remastered versions of their two award-winning albums, 1987's Trio and 1999's Trio II, with a third disc compiling 20 alternate takes and unreleased material. It was released worldwide on September 9, 2016, by Rhino Entertainment.

Despite being touted as "complete", the set is missing four recordings that feature the trio. Those four tracks are:

Additionally, Parton and Ronstadt both provided harmony vocals on various tracks throughout Harris' 1985 album The Ballad of Sally Rose.

Longtime friends and admirers of one another, Parton, Ronstadt and Harris first attempted to record an album together in the mid-1970s, but scheduling conflicts and other difficulties (including the fact that the three women all recorded for different record labels) prevented its release. Finally a collaboration effort went to full fruition, being produced by George Massenburg. When Trio was released in early 1987, it spawned four huge Country hit singles - including the Country #1 remake of the Phil Spector penned 1958 hit by The Teddy Bears, "To Know Him Is To Love Him". The album hit #1 on the US Country album chart - where it held for five consecutive weeks - and #6 on the main Billboard album chart. It won the Grammy Award for Best Country Performance by a Duo or Group with Vocal. It was also nominated for the Album of the Year Grammy alongside Michael Jackson, U2, Prince and Whitney Houston as well as best country song for "Telling Me Lies". It was certified Platinum by the Recording Industry Association of America.

A dozen years after the release of their multi-Platinum, Grammy-winning Trio album, the country music supergroup returned with another in the same vein. Five of the ten tracks on this album first appeared on Linda Ronstadt's 1995 album Feels Like Home, minus Parton's vocals. These five tracks were "Lover's Return", "High Sierra", a cover of Neil Young's "After the Gold Rush" (with Valerie Carter and string arrangements by David Campbell), "The Blue Train" (a Top 40 solo hit for Ronstadt), and the title song to the Ronstadt album, the Randy Newman-composed "Feels Like Home". The Gold-selling album reached the Top Five on Billboard's Country Albums chart as well as #62 on Billboard's main album listing.

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