habe wie folgt:
\title{Name des titels
\vspace{1cm}
\includegraphics{bild.png}
}Danke!
\title{Name des titels
\vspace{1cm}
\includegraphics{bild.png}
}\documentclass{beamer}
\usepackage[utf8]{inputenc}
\usepackage{german}
\usepackage{amsmath}
\usepackage{graphicx}
\usepackage{array}
\usepackage{caption}
\title{Name Titel)
\vspace{1cm}
\includegraphics{bild.png}
}
\author{Name}
\institute{Name Institut}
\date{Datum}
\begin{document}
\begin{frame}
\titlepage
\end{frame}
\end{document}
\documentclass{beamer}
\usepackage[utf8]{inputenc}
\usepackage[ngerman]{babel}
\usepackage{amsmath}
\usepackage{graphicx}
\usepackage{array}
% anders als in beamerinnerthemedefault wird die titlegraphic nach dem title eingefügt
\setbeamertemplate{title page}
{
\vbox{}
\vfill
\begingroup
\centering
\begin{beamercolorbox}[sep=8pt,center]{title}
\usebeamerfont{title}\inserttitle\par%
\ifx\insertsubtitle\@empty%
\else%
\vskip0.25em%
{\usebeamerfont{subtitle}\usebeamercolor[fg]{subtitle}\insertsubtitle\par}%
\fi%
\end{beamercolorbox}%
\par
{\usebeamercolor[fg]{titlegraphic}\inserttitlegraphic\par}
\begin{beamercolorbox}[sep=8pt,center]{author}
\usebeamerfont{author}\insertauthor
\end{beamercolorbox}
\begin{beamercolorbox}[sep=8pt,center]{institute}
\usebeamerfont{institute}\insertinstitute
\end{beamercolorbox}
\begin{beamercolorbox}[sep=8pt,center]{date}
\usebeamerfont{date}\insertdate
\end{beamercolorbox}\vskip0.5em
\endgroup
\vfill
}
\title{Name Titel}
\titlegraphic{\includegraphics[height=3cm]{bild}}
\author{Name}
\institute{Name Institut}
\date{Datum}
\begin{document}
\begin{frame}
\titlepage
\end{frame}
\end{document}