Two suggestions: Ablative armor and Reflective armor.
In the real world, lasers (and other forms of focused light, such as burning mirrors) cause the object they are focused on to heat up rapidly. This is because light is a form of energy, and lasers are a type of light. When light hits an object, it either bounces off of the object or is absorbed by the object. When an object absorbs light, that energy is converted into heat.
In order to survive atmospheric reentry, spacecraft use ablative materials. These are materials that sublime (turn from solid into gas when they heat up, like dry ice) and are torn away by air resistance. This way, the parts of the vehicle that heat up are removed so that the passengers inside the spacecraft don't heat up too much.
It is possible to create ablative armor for defense against lasers, so that the armor turns into vapor when the laser hits it, preventing the wearer from getting injured. This is similar to how ceramic body armor protects against bullets: The ceramic plates break so that the armor is damaged instead of the wearer.
Reflective surfaces have a high albedo, or amount of light reflected. The more light that a surface reflects, the less light that surface absorbs. A dark surface will heat up faster than a light surface because it absorbs more of the light. A surface with a very high albedo, such as a mirror, will absorb little light and therefore not heat up much at all.
This means that if the outer layer of your armor is made a mirror, most of the laser will reflect off of it, causing a significant reduction in how much damage the wearer takes.
Both ablative and reflective armors can be made into armored suits for personal use, handheld shields, or scaled up to cover vehicles or buildings.