I have the current dataset:

Month Fund Region Name
Jan A E SH
Jan B W FW
Feb C S WR
Feb C E SH
Feb C E SH

I have written the following formula to return the unique values in
the name column:

=SUM(IF(FREQUENCY(IF('Data Sheet'!$A$3:$A
$79=(CONCATENATE(CHOOSE(MONTH(TODAY()),"Jan","Feb" ,"Mar","Apr","May","Jun","Jul","Aug","Sep","Oct"," Nov","Dec"),"-",YEAR(TODAY()))),IF('Data
Sheet'!$D$3:$D$79="FUND",IF('Data Sheet'!$P$3:$P$79="Region",IF('Data
Sheet'!$J$3:$J$79<"",MATCH("~"&'Data Sheet'!$J$3:$J$79,'Data Sheet'!$J
$3:$J$79&"",0))))),ROW('Data Sheet'!$J$3:$J$79)-ROW('Data Sheet'!$J
$3)+1),1))

I want to have a formula that will return me the duplicate "Names" per
Month per Fund per Region. Basically its taking the formula above and
instead of it using frequency for unique values it would use some
function for duplicate values.

Thanks for the help.

Scott