File:Greek alphabet in LaTeX.svg

\documentclass[]{article}
\usepackage{unicode-math}
%opening
\title{}
\author{}

\begin{document}
	
\begin{center}
	$\Alpha \alpha$ (alpha) $\Beta \beta$ (beta) $\Gamma \gamma$ (gamma) $\Delta \delta$ (delta) \\
	$\Epsilon \epsilon$ (epsilon) $\Zeta \zeta$ (zeta) $\Eta \eta$ (eta) $\Theta \theta$ (theta) \\
	$\Iota \iota$ (iota) $\Kappa \kappa$ (kappa) $\Lambda \lambda$ (lambda) $\Mu \mu$ (mu) \\
	$\Nu \nu$ (nu) $\Xi \xi$ (xi) $\Omicron \omicron$ (omikron) $\Pi \pi$ (pi) \\
	$\Rho \rho$ (rho) $\Sigma \sigma$ (sigma) $\Tau \tau$ (tau) $\Upsilon \upsilon$ (upsilon) \\
	$\Phi \phi $(phi) $\Chi \chi$ (chi) $\Psi \psi$ (psi) $\Omega \omega$ (omega) 
\end{center}

\end{document}