FNN may refer to:
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False nearest neighbor algorithm
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Farnborough North railway station, in England
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Feedforward neural network
A feedforward neural network (FNN) is an artificial neural network wherein connections between the nodes do ''not'' form a cycle. As such, it is different from its descendant: recurrent neural networks.
The feedforward neural network was the ...
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Financial News Network, a defunct American television network
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Flat neighborhood network, a type of computer network
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Fox News Network, U.S. cable news network
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Fuji News Network, a Japanese television network
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Fuzzy neural network
* Fake news network, a mockery used for
CNN primarily during and a while after the 2016 USA election.
{{disambiguation
* Friday Night Nexus, a fictional wrestling gameplay series on YouTube by HeelDiggy