Birk is both a surname and a masculine given name. Notable people with the name include:

Extracellular Matrix Assembly and Structure
The HITRAN 2008 molecular spectroscopic database
The HITRAN 2004 molecular spectroscopic database
The HITRAN2012 molecular spectroscopic database
The HITRAN 2012 Molecular Spectroscopic Database
Does subclinical rejection contribute to chronic rejection in renal transplant patients?
[Alternative activation of antigen-presenting cells: concepts and clinical relevance]
Reduced caudate and nucleus accumbens response to rewards in unmedicated individuals with major depressive disorder.
Knockout of the α2 but Not α1 5′-AMP-activated Protein Kinase Isoform Abolishes 5-Aminoimidazole-4-carboxamide-1-β-4-ribofuranos...
Pregnancy and multiple sclerosis.