Hawthorn herbs, also known as Crataegus laevigata, Crataegus oxyacantha, Crataegus monogyna, English hawthorn, harthorne, haw, and hawthorne, are spiny, flowering shrubs or small trees of the rose family.

Hawthorn herbs have been used for heart disease since the first century. Hawthorn herbs have also been used for digestive and kidney problems. More recently, hawthorn herbs have been used for heart failure, a weakness of the heart muscle that prevents the heart from pumping enough blood to the rest of the body, which can lead to fatigue and limit physical activities. Hawthorn herbs are also used for other heart conditions, including symptoms of coronary artery disease (such as angina).

Hawthorn herbs are used to make liquid extracts, usually with water and alcohol. Dry extracts are put into capsules and tablets.

There is scientific evidence that hawthorn herbs are safe and effective for milder forms of heart failure. There is not enough scientific evidence to determine whether hawthorn herbs work for other heart problems.

Hawthorn herbs are considered safe for most adults when used for short periods of time. Side effects are usually mild and can include upset stomach, headache, and dizziness. Drug interactions with hawthorn herbs have not been thoroughly studied. It was once thought that hawthorn herbs interacted with the heart medicine digoxin. However, a very small study in people without heart conditions found no interaction, but evidence is limited.