Best Undermount Bathroom Vanity Sink Tops of 2026

The KOHLER Caxton Rectangle Undermount Bathroom Sink is a versatile and attractive sink that suits both traditional and modern bathroom decors. The sink is made of vitreous china, which ensures lasting beauty and exceptional durability. It has a simple, streamlined design that is easy to clean and combines the sleek look of an integrated basin with just about any countertop. The sink requires wall or counter mount faucet and comes with no faucet holes. It is an undermount installation with a rectangular basin that has an overflow, but the drain is not included.

Upgrade your bathroom with the Kohler 8189-0 Verticyl Bathroom Sink. Its geometric rectangular basin with vertical sides and undermount installation provides a deep, sophisticated look that seamlessly integrates into your bathroom design. The sink features an overflow drain and requires a wall or counter-mount faucet, offering you the flexibility to choose your preferred faucet style.

The KARAMAG Rectangle Undermount Bathroom Sink is a durable and stylish option for your bathroom. It is made of glazed vitreous china with high density, providing exceptional durability and lasting beauty. The smooth surface is easy to clean and does not absorb residue. This sink comes in a pure white color and has curved sides, perfect for bathroom, vanity, lavatory, and restroom use. The sink has an 18-inch dimension and an overflow. Faucet and pop-up drain are not included.

The Nantucket Sinks Oval Ceramic Undermount Vanity Sink is ideal for small spaces with its compact size. It is crafted from vitreous china and designed to undermount to a solid surface counter. The sink features a 1.5" drain opening with overflow and has exterior dimensions of 15 x 12.125 inches and interior dimensions of 13 x 10.125 inches with a bowl depth of 6.125 inches.

The 18 Inch White Undermount Bathroom Sink by KARAMAG is a sleek and stylish addition to any bathroom. The sink is made of high-density glazed vitreous china and has a smooth surface that is easy to clean. Its durable material ensures exceptional durability and lasting beauty. With no faucet holes, this sink is perfect for those who want to customize their bathroom's look. The sink comes with overflow, and its dimensions of 18.3"x13.8" make it a perfect fit for any vanity or restroom.

The Mocoloo Rectangle Sink is a sleek and stylish undermount bathroom sink that is easy to clean and offers more countertop space. Its glazed porcelain surface resists scratches and stains, ensuring durability. The design prevents water from overflowing, keeping your bathroom clean and dry. With an exterior size of 18” x 14” x 8” deep and an interior size of 16 1/2” x 11 3/4”, this sink is practical and functional. The sink comes with a 100% warranty, offering hassle-free returns for quality issues.

The Nantucket White Undermount Sink is designed with practical dimensions, measuring about 18 by 13 inches on the outside and offering a roomy 16 by 11 inches inside the bowl. This size makes it a great fit for many bathroom vanities, especially if you have at least a 21-inch cabinet base. The bowl depth ranges from nearly 6 to over 7 inches, giving you plenty of space to wash comfortably without splashing. It also features a standard 1.75-inch drain, which helps water flow away efficiently. Plus, the built-in overflow protects you from accidental spills, keeping your bathroom neat and dry.

The kjineaten Rectangular Undermount Sink offers a sleek, modern design that brings a fresh and stylish look to your bathroom. Its smooth curves and glossy white finish add a contemporary touch that fits well in any space. Made from high-quality ceramic, this sink is built to last, resisting scratches, stains, and fading so it stays looking new with little effort from you. The undermount installation creates a clean, seamless appearance on your countertop, while the built-in overflow helps prevent water spills, keeping your bathroom tidy and dry. This sink combines style and practicality for everyday use.

The Monarch Abode Black Vanity Sink is a handcrafted 21-inch sink made of durable 18-gauge aluminum. Its stylish design with hand hammered impressions and a modern black finish will enhance the look of your bathroom. The dual mount feature allows for easy installation as a drop-in or undermount sink. With outer dimensions of 20.75" x 14.75" x 6.5" and inner dimensions of 18.75" x 12.75" x 6.5", this sink offers versatility and lasting performance for your home. Ensure your drain size is 1.5 inches without overflow for optimal use.

The KDKSC Small Undermount Sink is a compact and practical choice for your bathroom vanity. Its external size of about 16 by 12 inches makes it ideal for smaller spaces, while the rectangular shape with vertical sides offers a modern look that fits any decor style. Made from high-density glazed ceramic, this sink provides a durable surface that resists wear and is easy to clean, helping you maintain a fresh and polished bathroom. While it comes with the sink itself, remember that the faucet and drain are sold separately, so you can customize your setup to your needs.