98 James Suckling - Jamessuckling.com

The purity here is really something. Blackberries and blackcurrants with sandalwood, mint and other classic herbs. Full-bodied and dense with ultra-fine tannins. Silky in all ways. Goes on for a long, long time. A blend of 79% cabernet sauvignon, 11% cabernet franc and 10% merlot. Joyous and serious wine for the vintage. And comparable to 2014 and 2015. Try after 2023.

97 Jeb Dunnuck - jebdunnuck.com

"The grand vin 2017 Chateau Leoville Las Cases checks in as 79% Cabernet Sauvignon, 11% Cabernet Franc, and 10% Merlot, harvested between the 15th of September and the 4th of October. Brought up in 90% new French oak, it has an incredibly classic style that carries loads of creme de cassis, crushed rock, graphite, and smoked tobacco-like aromatics. These carry to a full-bodied, concentrated, elegant Las Cases that has fine tannins, flawless balance, and a great finish. It shows the refined, regal style of this estate, has beautiful richness and depth, and is going to drink nicely with just 5-7 years of bottle age."

97 Lisa Perrotti-Brown - The Wine Independent

"The 2017 Leoville Las Cases is a blend of 79% Cabernet Sauvignon, 11% Cabernet Franc, and 10% Merlot and has a deep garnet-purple color. It needs a lot of coaxing to uncover notes of crushed black cherries, warm cassis, and mulberries, plus touches of underbrush, pencil shavings, and dried lavender, with a hint of crushed rocks. Light to medium-bodied, the palate is exquisitely fine-knit, with wonderfully nuanced, delicate black fruit and mineral layers, supported by ripe, plush tannins, finishing with a lingering quiet intensity."

96 Wine Spectator

A very focused, very pure rendition, laden with cassis, plum reduction and boysenberry puree fruit that is mostly waiting in reserve. A cold cast iron edge imparts a sense of restraint, while smoldering tobacco, charcoal and alder notes are deeply buried on the finish. The opposite of flamboyant. In need of time. Cabernet Sauvignon, Cabernet Franc and Merlot. Best from 2025 through 2040. 12,500 cases made.

96 William Kelley - Robert Parker's Wine Advocate

One of the finest wines of the vintage in Bordeaux, the 2017 Léoville Las Cases is a beautiful Saint-Julien that bursts from the glass with expressive aromas of cassis, wild berries, pencil shavings, violets and a subtle hint of cigar box. Medium to full-bodied, supple and enveloping, its unusually charming, sensual profile largely conceals a considerable endowment of tannin and a bright spine of acidity. Largely spared by the frost due to its optimal location on the bank of the Gironde, and subject to a draconian selection, the 2017's giving style reflects not only the vintage but also more restrained use of press wine chez Las Cases, seeing only 7% in the blend as opposed to the 10% to 12% that was typical not too long ago. It's a masterpiece.