HF, Hf or hf can refer to:
Haemochromatosis (or hemochromatosis) type 1 (also HFE hereditary haemochromatosis or HFE-related hereditary haemochromatosis) is a hereditary disease characterized by excessive intestinal absorption of dietary iron resulting in a pathological increase in total body iron stores.
HFS Plus or HFS+ is a file system developed by Apple Inc. It serves as the primary file system of macOS.
Human hemochromatosis protein also known as the HFE protein is a protein which in humans is encoded by the HFE gene.
HFC Haarlem was a Dutch football club from the city of Haarlem, established in 1889 and dissolved in 2010. The club won the Dutch national title in 1946 and reached five Cup finals, winning in 1902 and 1912. Haarlem reached the second round of the 1982–83 UEFA Cup, losing to Spartak Moscow of the Soviet Union.
The HFStival was an annual Washington, D.C. / Baltimore, Maryland rock festival. Held every summer from 1990 through 2006 by radio station WHFS, and annually since 2010 in commemoration of the now-defunct station's legacy, the HFStival was at its peak the largest yearly music festival on the East Coast.
An Hfq binding sRNA is an sRNA that binds the bacterial RNA binding protein called Hfq. A number of bacterial small RNAs which have been shown to bind to Hfq have been characterised (see list).
The Hfq protein (also known as HF-I protein) encoded by the hfq gene was discovered in 1968 as an Escherichia coli host factor that was essential for replication of the bacteriophage Qβ.
A high-frequency recombination cell (Hfr cell) (also called an Hfr strain) is a bacterium with a conjugative plasmid (for example, the F-factor) integrated into its chromosomal DNA.
HFC may stand for: