Sir Ronald Aylmer Fisher, FRS (17 Fèbruari 189029 Juli 1962) punika nimpuna statistika, tetanèn èkspèrimèntal, lan genetika kuantitatif asal Inggris. Ronald Fisher punika pamaring landhesan kanggé kathah aspèk salebetipun statistika modhèren, khususipun ing babagan statistika inferensi, ingkang nyinaoni téyori estimasi lan uji hipotesis. Panjenenganipun ugi dipuntepangi minangka tiyang ingkang saged manunggalaken kalih kutub perdebatan ing awal ngrembakanipun genetika modhèren: antawisipun kutub genetika kuantitatif lan genetika kualitatif (genetika Mendel).

R. A. Fisher
Lair(1890-02-17)17 Fèbruari 1890
Finchley Wétan, London, Inggris
Pati29 Juli 1962(1962-07-29) (umur 72)
Adelaide, Australia
PadununganInggris
Australia
BangsaInggris
Alma materUniversitas Cambridge
Kondhang ingFisher's fundamental theorem
Maximum likelihood
Fisher information
Analysis of variance
Fisher–Kolmogorov equation
Fisher's geometric model
Coining the term 'null hypothesis'
Fiducial inference
Fisher's exact test
Fisher's principle
Fisherian runaway
F-distribution
BebungahRoyal Medal (1938)
Guy Medal in Gold (1946)
Copley Medal (1955)
Linnean Society of London's Darwin–Wallace Medal (1958).
Karièr ngèlmiah
BabaganStatistika
Biologi evolusi
Genetika
InstitutionsRothamsted Experimental Station
University College London
Cambridge University
CSIRO
Juru pamrayogaSir James Jeans
F.J.M. Stratton
Mahasiswa dhoktoralC.R. Rao
D. J. Finney
Walter Bodmer
MrabawaniLeonard Darwin
KaprabawanJoseph Oscar Irwin
A. W. F. Edwards
Georg Rasch
W. D. Hamilton
Oscar Kempthorne, Richard Dawkins
Cathetan
He was the father-in-law of George E. P. Box.

Richard Dawkins, tokoh pandhukung neo-Darwinisme lan ateisme, nyebat panjenenganipn minangka "Pangganti Darwin paling ageng"[butuh sitiran], lan ahli sajarah statistika Anders Hald nyebat "Fisher punika satunggiling jénius ingkang kiyambakan nganggit dhasar-dhasar èlmu statistika modhèren".