杏仁膏（英语：Marzipan）又称杏仁糖膏、杏仁糖、杏仁糖衣，是一种主要由食糖和杏仁制成的甜食（制成的糕饼即称为杏仁饼），可用于烘焙、做糕面装饰或甜品内馅。杏仁膏的特色之一是加入了苦杏仁，其占杏仁总重比例上至12%。有的杏仁膏会添加玫瑰香水。桃仁和杏子由于价格较低，有时会被用来代替杏仁。果阿邦（前葡属印度）地区则选用腰果。许多标榜加入杏仁膏的糕饼，实际上是使用成本较低的食材充数，例如黄豆膏或杏仁香精。德国杏仁膏是以整颗杏仁捣碎、加入糖，再经过部分烘干。法国杏仁膏则是以杏仁粉拌入糖浆制成。西班牙杏仁膏原料没有加入苦杏仁。

Marzipan is a confection consisting primarily of sugar or honey and almond meal, sometimes augmented with almond oil or extract. It is often made into sweets; common uses are chocolate-covered marzipan and small marzipan imitations of fruits and vegetables. It is also rolled into thin sheets and glazed for icing cakes, primarily birthday, wedding cakes and Christmas cakes. This use is particularly common in the UK, on large fruitcakes. Marzipan (or almond paste) may also be used as a cake ingredient, as in stollen. In some countries, it is shaped into small figures of animals as a traditional treat for New Year's Day. Marzipan is also used in Tortell, and in some versions of king cake eaten during the Carnival season. Traditional Swedish princess cake is typically covered with a layer of marzipan that has been tinted pale green.