apex:form >

     apex:pageBlock >
         apex:pageBlockTable value="{!conlist}" var="c">
             apex:column value="{!c.Account.Name}">
             apex:column value="{!c.Name}"/>
             /apex:column>
         /apex:pageBlockTable>
     /apex:pageBlock>
 /apex:form>

public List<Account> acclist{get;set;}
public List<Contact> conlist{get;set;}
public List<MyWrapper> wap{get;set;}

public WrapperAccountCtrl()
{
    acclist=[Select id,name from Account];

    conlist=[Select id,name,AccountID,Account.Name from contact where AccountID IN:acclist];

    system.debug('Size----'+conlist.size());

     wap=new List<MyWrapper>();

     for(integer i=0;i<acclist.size();i++)
     {
         wap.add(new MyWrapper(conlist,acclist[i]));

     }

}



public class MyWrapper
{

    public Account accn{get;set;}

    public List<Contact>conrec{get;set;}

    public MyWrapper(List<Contact> con,Account acc)
    {
        accn=acc;
        conrec=con;

    }


}