Protistology is a scientific discipline devoted to the study of protists. Its field of study overlaps with more traditional disciplines of phycology

Phycology

Phycology is the scientific study of algae. Phycology is a branch of life science and often is regarded as a subdiscipline of botany....

, mycology

Mycology

Mycology is the branch of biology concerned with the study of fungi, including their genetic and biochemical properties, their taxonomy and their use to humans as a source for tinder, medicinals , food and entheogens, as well as their dangers, such as poisoning or...

, and protozoology

Protozoology

Protozoology is the study of protozoa, the "animal-like" protists. This term has become dated as our understanding of the evolutionary relationships of the eukaryota has improved....

, just as protists, which, being a paraphyletic group embrace algae

Algae

Algae are a large and diverse group of simple, typically autotrophic organisms, ranging from unicellular to multicellular forms, such as the giant kelps that grow to 65 meters in length. They are photosynthetic like plants, and "simple" because their tissues are not organized into the many...

, some organisms regarded previously as primitive fungi, and protozoa

Protozoa

Protozoa are a diverse group of single-cells eukaryotic organisms, many of which are motile. Throughout history, protozoa have been defined as single-cell protists with animal-like behavior, e.g., movement...

("animal" motile protists lacking chloroplasts).

Also a journal by the same name.