Ci sono vari metodi anche basati su css ma io preferisco questo
codice:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Documento senza titolo</title>

</head>

<body>
<table width="400" border="0" cellspacing="0" cellpadding="0">
  <tr>
    <td valign="top">
   		<table width="400" border="0" cellspacing="0" cellpadding="0">
  <tr>
    <td width="200" align="left">Nome</td>
    <td width="200" align="right">Cognome</td>
  </tr>
</table>
    </td>
  </tr>
</table>
</body>
</html>