Leading order mesonic and baryonic SU(3) low energy constants from <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>N</mml:mi><mml:mi>f</mml:mi></mml:msub><mml:mo>=</mml:mo><mml:mn>3</mml:mn></mml:math> lattice QCD

We determine the leading order mesonic~($B_0$ and $F_0$) baryonic~($m_0$, $D$ $F$) SU(3) chiral perturbation theory low energy constants from lattice QCD. employ gauge ensembles with $N_f=3$ (i.e., $m_u=m_d=m_s$) non-perturbatively improved Wilson fermions at six distinct values of spacing in range $a\approx (0.039 - 0.098)$ fm, which constitute a subset Coordinated Lattice Simulations (CLS) ensembles. The pseudoscalar meson mass $M_\pi$ ranges around $430$ MeV down to $240$ linear spatial extent $L$ $6.4\,M_{\pi}^{-1}$ $3.3\,M_{\pi}^{-1}$, where $ L M_\pi \geq 4$ for majority This allows us perform controlled extrapolation all chiral, infinite volume continuum limits. find condensate $F_0$ be smaller than their SU(2) counterparts while Gell-Mann--Oakes--Renner parameters $B_0\approx B$ are similar. Regarding baryonic LECs, we obtain $F/D = 0.612^{(14)}_{(12)}$.