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Motivated by possible scalar-leptoquark explanations of the recently reported$B$-decay anomalies, we investigate whether the required leptoquarks can beaccommodated within models based on noncommutative geometry (NCG). The modelsconsidered have the gauge structure of Pati-Salam models, $SU(4)\timesSU(2)_L\times SU(2)_R$, with gauge coupling unification at a single scale. Inone of the models, we find a unique scalar leptoquark with quantum numbers$(3,1,-\frac{1}{3})_{321}$, originating from a complex multiplet$(6,1,1)_{422}$, which can potentially explain the $B$-decay anomalies if itsmass is on the order of a few TeV. The unification of couplings can be realizedwith the inclusion of a single step of intermediate symmetry breaking. Thescalar leptoquark under consideration does not contribute to proton decay dueto the absence of diquark couplings, as dictated by the underlyingnoncommutative geometry.

$B$-decay anomalies and scalar leptoquarks in unified Pati-Salam models from noncommutative geometry